1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd0c55171f48aafe2c95806e29f7265370b301c565360a76bc82f7e356061cf. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9328186c-2efa-45b9-844a-869e176e953e.json and https://artists.proofprofile.net/proofs/artist/9328186c-2efa-45b9-844a-869e176e953e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b0a44d9fbed1f87903cedd990942b397d347695dabaee3d70deef51b38155f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d18d3d216aefd4d1a49eec4661fce4cad0bc25909306336daa915fa356827f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6708c1427ecc90f9ff41232fd520e8525cf1fff27db8344cbea38afcf48271c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c77bd434b096d91ba7059b5e172cdb97970ed0b84e72a7e1a998b8f90e26b81. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137d18f2c3c45266cd6f3789682360dc54a26348ddcb9efbf0069d74605b240b. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01975e1a60dbfd9523108213f42317e32608fed4e278510523121798c2b7728. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92eb33ee5cad9320374f1b7781cbcc7d6435c642fdf38e6be307b6a8d6439f3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaf7df6df729b2fbda973a75c15f95721b9446cea3c384fc079f7835954f2a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea96c3db6632268de98becb1f9b0c20aac1c3e7d2fb480b0b9a32cebc3f50f8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a69714978e5c51b1ff72a59996c69b390e8a35daaed39886aefc3507ba8cb7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037038913117a2129ecdf60e442e5bece18c21a46c36a2be2ce30a0b3fb063d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb093b1c22678484602b25e090289e6b29cfc51af3e51d5d6c1d3c76b15fcddd5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4dec813e170ff6264dda7a78fdca106a5d2519a6d50a707cca7f964685da9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3d1d1a8acc09bb810de0284e102b05439dac44fe84d14ed367e5dd375457c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2436995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb119549976e4cbebd21fd0e128169593320771eff8b00eaf21e0e6345de83c8d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2427966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3656087ff1a1fc8f3c003145ebd2a3daec0a2e1424a4b1ef3ae708a158ad9bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ662473643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dce934a17f3b0b5d2bebb8a718ce1b343e0abc4bf54c554e6f6f38ddbbf846. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ662355039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78fc184de898f9b633f1199be43c01f069dbf9edd82c13ea248c89701d56e93. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ662325236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2137a2f9f84f70bfd7dc55d0b97bfb23dae789515c482009e7a26ca449a0b8c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72300348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437101fb8bf29953287f2d667c5013cb163d0d90689c3cd4aa5e0098c9e7798a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6132847b353d77c2f93c99e21d04f7d052c19e77a39cb7139c100270d11854. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72201222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fea114370a946b3b5dca43d414b24cbcffb133d9f515b5a807a1a38af232de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2229456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b17cf1cdcb3aaa63fe2ffbbde361cbf9ae3f0de3386afb4156a326c192030e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2214747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65a00084cc65778703d6e86836559acac9adb61646466ad1b6e967c2105e4ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc7ed048a3e2256c0d213611750815ddeae4922082b256ee96ed80e8f7067e3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882255504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5408926d1cfcb3f755ce5b744486df427bc2e4feeee164ce7af59f104a5bd5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb007ad85cf27942ed5e562ac595c8921e0fdeb8ef24e8f18ebfbcbcf99f0537. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5027e7e912098714790c8fc2c1bdcd2f024b15bcd1b6f3f4ab2f58d7f949d9b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c5a3a02d3b8b3a90dab8f9a7b05afcf560a6528319afffaf048131fc87592. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d05b85f4d7bfa546b99dee97c6f6e33e62b9f46a76d995f70c0cd6a4d82ad1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb775ec21ffabc870e89e7ad9c1368b21c01f3a187f849e45a00a92da10d93d28. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137f74d0c7459256b0245c09ac150c2448e285d70f0b7d60dd08efc90235984c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f70c338bebc1109e5181c10f874da8ca3a3f2f0608e241728f0a311e0b92ec. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb775ec21ffabc870e89e7ad9c1368b21c01f3a187f849e45a00a92da10d93d28. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700cf6e914a6b0eb1e287aee5dcb8de8b5b0a2d3a62d50633ad302547c648341. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ62092453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe357f859644dca0a439773d2d040519bd876e7664a7b562459f52cbcdd43d16a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ52007750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a22d3afd0b511ac4abe1d6b46caf28b1d12812d1d0ba8a38b00401dfb27f866. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b0a44d9fbed1f87903cedd990942b397d347695dabaee3d70deef51b38155f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b356c9fe3e91f5f53d1358bdeba9a181b5c404d98caa30f8094864d10fef65c. Chain 2 (Bitcoin): anchored in block 956960 (2026-07-06T23:19:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89a56ed727ea033e5d0c872ccf3ccf1d757466920e17af915e42e56e759a720. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a8a202c9341f8296399c01749b90b4be26f13ecd6675f82cdcc8209b78d131. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3602eb0a564f7a1477d459d17c841357f3815bf5fb237daefb807433b228a01. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9cc8820d9ce06f226e8562223531e311ee3a2444b753630c26984026d31072. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863981e1980e4597a4c1bb0f23449de7339002e18816b4e8a7735e015135fc12. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d18d3d216aefd4d1a49eec4661fce4cad0bc25909306336daa915fa356827f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19af62b1b192a0a7cfc8d267c3792f0d5f8ed7e29d088fdbf153d43a1027d426. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f57767e8af29b9d07f99c4c78956eb021cd52d13bae8dfc628ce3d89dad890. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd79214a42c14f1b0cd4a3a7c96e062c15ed2e76e77194fa30868a6258dccab2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a40c385d5b6d0482c3e1057e49d26f9868fe7f34c1c3a9c90e54ca13ab09396. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dcebf4270d1f9cd72a2ba08dae8d9430221da0e78aef5651f397c2575afcfc. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940cc18d253a5bfbd23e8a861ae8150032f4c2f8a90d6e19bbf26b84087b2dbf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a2399dccf072c9f3bae71dffd506f8a7b931352610d69048f4fed9d462e009. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6708c1427ecc90f9ff41232fd520e8525cf1fff27db8344cbea38afcf48271c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f7f70094a676b1402bd9260e4d2dd0339b4d4e0f8174f8cbc7810c2a65ccd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe581bfee8bb0ae736a095145be88ba192eb193ae1638c85f0d50020249d31269. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c77bd434b096d91ba7059b5e172cdb97970ed0b84e72a7e1a998b8f90e26b81. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98238ca5d14160c9e0eab27feb70a2fe43289b1cb666e34f6ff3e71300678f50. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01863167f310ca6aaf4a87bec0d929535d63656438a1cba564f6e7a8fd91b634. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bbe95576eef4c144b45a115007322fba0b16aca7f6dc75a87941286b3e4ef6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdfc0fff12ca84fc798a41810fe76d96565ba7dd7ea2467f66ce36388020c43. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933a1d2791fa2017302f6100132826461327966c9509984bb360ec6eba6c6961. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92067235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3145e62bf75324653be4fcdb7108cc728d76a7c99da8676d27bf70b9629a6e99. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f50f1f6b065c4808522213e495cf3c13ee8f8754ff2787e6a0f9f566e2ecfd9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb093b1c22678484602b25e090289e6b29cfc51af3e51d5d6c1d3c76b15fcddd5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e24616751f61c6064d41677b48c7e7d6b9b18a3aecf1eb4fb71861a35d8f0e. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125e7eec568d6d7ba0047b3bb221d0308b2fecd7be4a954a7a39f8d98cf2b13d. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aceb4fafc8c8e285d3b4800e71cd65059e090c6189bc65aa92e7e421a171dd. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4dec813e170ff6264dda7a78fdca106a5d2519a6d50a707cca7f964685da9f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04cfc2e4b71c29299615ec64939bffa928443ff645d8322bc570adcfa2dab76. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72002261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26333a8d4ad0eebc0228c6d67ab2d969e217937127ecb31aed8c098e816df2f4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82047804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773fe87726fa3fa5312b47d91faa4787d9bfed99bae4277fdc22e073f0bb1edb. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82047805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5809238e0b454e3bf9c9049098228d8265e3f39273ea02b35240a1eb248514. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882578928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdab17c65f67ce0429b301a47e0f06d75c224a76983ddbba0d7649b67938dab1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f256e00118c2240d8fea99dfbe08608be0f2175e0637f535a11cfccbb3d8c3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882541079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf3c500296d37a45f9030f2038d7789ffe23eb92a998a12429fb80684602b73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0T2408603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbccff8221750d3b30e6adeedb3899e374e0f62213b50352c65d9c7fae6ab52. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882437649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18fa58262f16cb4471c8bc1555ab051e55b91db03546a60fd571b4a681a5483. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2464200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a33f41bd1012729049289ab0a47c3606427f4afbefda43c913a5ac9234ed643. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437101fb8bf29953287f2d667c5013cb163d0d90689c3cd4aa5e0098c9e7798a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6132847b353d77c2f93c99e21d04f7d052c19e77a39cb7139c100270d11854. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72201222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc44f4e63430ab77fc27ee28853335e6bf0a1a69d290f83bde7067e104fe1ec0. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72201042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c2bea15f8fe235a5c2c01624e549e37819096255e5f0c7398a1505260540eb. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a7d5549fe3cc5a2a798d4c673888e8bab11d97e6048ed26e2af38a10aa98df. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eed61479b2397976da0f4e5a066c48a795af5254de1fe3c526a7ce50fa669b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd80b93339c9d6669c225a2e48990c070eaa62c36b7833db3a91c083166d00. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ae217be7fc6023eb873e002f3badd65e0d114d6f5339a45035d4f4f0cab635. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72100643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3145e62bf75324653be4fcdb7108cc728d76a7c99da8676d27bf70b9629a6e99. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72000697.