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 0x11695685d4fc161594c6fa2ea68dd9699528cb59bfc4af804f72a5546f337a88. 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/01ae0c24-4791-4edf-b2fb-2355bb105d0e.json and https://artists.proofprofile.net/proofs/artist/01ae0c24-4791-4edf-b2fb-2355bb105d0e.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 0x2ae1f46a6e0c4fc7b6cc25236b2fe32b69a49349c6c358f4ae95c0b701a15031. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GBLV62216948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8ac6582e4a6833ae734cf546b51c21ba70b23079e4f4a468849206ed4c050. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GBLV62216950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ce7c1b938c58f919c79039d4ad23d830215be04fc6044926b2c461960fe42a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBLV62216951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949245825787d95cdae0be044f9c4e40df7b82051b18f726a748c00224f1f818. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ZA56E2314955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dcd20bdc7bf8c18965e41c2ab949982a607b72e45e8f49a4dcc2e2d161c917. 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/ZA56E2314956.
Ndiphiwe (feat. Jessica LM, Xolani Guitars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8134758fcee7e844827d4a0bba7ce7468a1f4257748d019c362af13e560175. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ZA56E2314957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3796436da2c7fb1fcc61f24740aed157574b0d774343c8f1ef220f4371286b5b. 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/ZA56E2314958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6f515322f309dcf18bcaf38f4ec88874ae2196a0324689b81f3be6cbc3d3c5. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ZAC012401567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60654b30f760d075681c13882d15048126c4079e71331d6da1ed6d9a05234eb8. 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/ZAC012401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274758ad1b2ce80d513dd15e35d7a572fecbece5bab2c9f26e3e961c51ed2ad3. 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/ZAC012401569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9e345d08e6b499dd4a0f6a2403735c3450f98a607534e3a5f9ca605b1a9898. 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/ZAC012401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e22f0ff1d0e09146659bad0c9a59c345cf0987bae64a783d64ac8e0d91ba8c. 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/ZAC012401571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829efdef37b81a71bbce2932850c01e489feb72971feedd20a56a442c9d6a74. 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/ZAC012401572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cbde0aa1d1c2856b5fe95cb33afdca30168e31fb8f0f791232c96d07915d35. 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/ZAC012401573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d1f66a9d055ade0892b1644bac9b506efeb437834db390bf9433811d8e8b90. 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/ZAC012401574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb510fffaf5130e85c14182e13a4edee5f62d952d6fa96e447d71f022c020804. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ZAC012401575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad4de40d9a12bb1d90cd13a56e3abbf6988e79fd055a1b2fe507dcc53de9501. 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/ZAC012401576.
The Gospel According To Artwork Sounds Chapter II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8bf94d0924b688b96dcd56f66326b3bed3e68912737ecc4ae0450d6e16cce3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2302117.
Generation Alpha - Bee-Bar Moshito Rework Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d62a86d07970eb0824ea8ac261de97e2519f4f5aa42a2f96bccaa826f8733e9. 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/DEY472379849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb577151754482983a7790a1e5a682f0097e54d9e7ff167c1292af41271af750. 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/ZAC012400153.
Ultimate House League Volume 1 by Dustinho & Mghanas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877043830326c880b4143f743bab09afde051e9b5d4ce00e732582057b1123e6. 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/QZMEM2290812.
Generation Alpha (Bee-Bar Moshito Rework Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccbf661d4267e27a8731d73ed6a9a7d5637cb7606abee7b963be3ebea35d117. 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/DEY472379884.
Mbuso's Revenge - Bee-Bar Just Bee U Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803ad99ff00f4532a05c15e74bdab000114d9ebdeacee42201bdbcd7bc836343. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/ZAY592300130.