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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52647557f1cc9035ac8a061f82883d2657d8417cab5b9c354a1707572f067728. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4ed9700-f9e3-4222-93c7-1ec330d63964.json and https://artists.proofprofile.net/proofs/artist/a4ed9700-f9e3-4222-93c7-1ec330d63964.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e19c957abf61be06a96872f5bb6db37bb1e691a9396e10d749fb8c122e686d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ9JZ1753575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8e5d6866780686b5e249f9c508c025a20383ee3f510d01b14037d40fa5e6bd. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZ8LD1750039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eca1d3c1885c1ab97c3c51e718d941542fdf26143ff2bab146268a2b9b686f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ9JZ1753579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd111fa6ee3c2d6895e7570fb51f01851dd3834c9b8dc3248120483498ca05084. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ9JZ1753580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b4912eeb18ab13527e52e42de375c04dd6074330b37ab6e3e509a5e3b16334. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ9JZ1753581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b163d014d955b1bf51c46f333f44c74f3a9e40afacda93a8cf5c684657fa548. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:43:19Z), 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/QZ9JZ1753582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abcbf798cfd3fc70ee22ea32aebd2ae791ef1ebd29312dd7d83dbe825ff8545. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ8GX1700505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511afbecfc7d56ea23c111865a44cff2b41d62104e7ab98d9b962b148a53333c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZ8GX1700507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a4fd8c7f8f026ebf13d1cd61a09e09a08a90f61518575270a707ca60f47136. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ8GX1700508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d9910ab3937c79a521920e2737732cd84244d2a7c4863ff71cc4d3292bf00b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ8GX1700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0708ee078408cfbebba347c2726d28f980bd9f98babdbc82d54cc7bc7ac725. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ8GX1700510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0670662c93e50e9c5c3f9a45b7f04ac46916519c6974913c90992ca8401a1e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ8GX1700463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c87c367c334296bc24f06bb84548e1a1837d0c8720c68e4aeaa9470936f356. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ8GX1700511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92593a9521a4137ed35ab6531ad47bcfa6fb04b6b97bfe123ff2391ddbd17c4b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ8GX1700512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405609b8f1d50b6cb933257a53fefb7213f95cde84c46432873bd4085a687ed6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ8GX1700513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855cbb93acd77078e1126c451184421086924e9f0257adbf392dee4aa22afb15. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ8GX1700514.
Dead of Night - The Wild Honey Pie Buzzsession
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cf7c268e20760fcd78ffe8bc1ac9ecbcbac391b16452012e44afe0cf07fa3c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:25:36Z), 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/QMEZE1949502.
Dead of Night (The Wild Honey Pie Buzzsession)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d977ecc7f685d0f720cc7b26f31741519887a7d6d88c0e5f3e33c04cb3c0f10. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QMRSZ2002240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3735cdda22e705a8135de9d54f375fb8b55ed4c41b10ed5762cc9a0f40b3ce83. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMRSZ2002241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46a1c08aaf9942a6e00d7eb57ca11170fd47a6da20927106351f6a78a849d81. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QMRSZ2002243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb6c018ff22b587d72f6fb13b435dbcc90b81fd39a8c78fd1e44be77b1738d8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QMRSZ2002245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf911aaa158b8ce9321aaa76c3a143bb60a930fd296e0420d3b6cecd9cc567485. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMRSZ2002246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb217d627e98a3c45c941844eb5de627235819e59426ff45cfdd9bd7ca4ccf9cd. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QMRSZ2002247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73fb7a897b4a05b64efbc89641760933aa78e5718c85f4136af2b9b797fc453. 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/QMRSZ2102275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba136becb56d8ef470e947e3441dc0da7fd3981c9a8c29a222b7bbd4e9bcbd4. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:55:04Z), 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/QZFYX2478984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13c1a7c2b02767dfec98e6d8f88911c0deb7a38e54e2d1ee875b749ada4ba54. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUGBT2414817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa133f5bdbe5300f0fb2af2f0011b107aa753a19aac971ef83d3d220da1b40b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUGBT2423758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7266849dfbd94acc0269568341f99386b8a9ad1ec81ee20cbf9cf603e3f8e076. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/AUGBT2423773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb485880682d407fe591c21af873b927544cfd6c8c12956ed5c68c48b6927cf80. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUGBT2423774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13c1a7c2b02767dfec98e6d8f88911c0deb7a38e54e2d1ee875b749ada4ba54. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUGBT2414817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e24b39e48d8cb49fbb07e36065ce3ad394154b887811625b7b94c7c62593cf. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:53:55Z), 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/AUGBT2423778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89a3626e22c720b09958d25c5c37063447553f0d58eb6a7b3e2b6c542496ae0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUGBT2423779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac239e39024a5a9c6e7ccfc83d2983d2e25398a216433b4efc0e632263915d16. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AUGBT2423780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b42f15fc701bb4911945e8578f64806945eaefd6f3530df67a998968045492. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AUGBT2423781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0384c22b80e72345bfccd6c6a094030068c74e5a5fbefeb3ed8cca1f25eaa386. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUGBT2423783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba136becb56d8ef470e947e3441dc0da7fd3981c9a8c29a222b7bbd4e9bcbd4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZFYX2478984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6445aaac48bf85405d35f9b152545eac2a1869aa4aa831939c91241aec720a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUGBT2423787.