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 0x7ef2adde7c1ddf54d0d5627af42d4a01543e7dd869854a44974f3e56a8adb3c7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79b32894-2eca-4a92-bb84-864ad26ef9b3.json and https://artists.proofprofile.net/proofs/artist/79b32894-2eca-4a92-bb84-864ad26ef9b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medieval Dances, Vol. 1 (Dances for reenactment, larp and medieval markets)
Medieval Dances, Vol. 1 (Dances for Reenactment, Larp and Medieval Markets)
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 0xa4e777921b4a3e1f88bfdecde2828b6c2913e6b7be568f676d5affd243ee3008. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEBL60691859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba4872219de105dbc8f810b40539a6264ed9517379e88ccdfa3f2fd5786c76e. 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/DEBL60691861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8853b59b7cad8bdbd9176469ef25164fe533620ec97bc8e5c6073c41f5defee6. 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/DEBL60691862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd30c947ab8d2be68c3dc5819a49aaad97272245b8a0534b35df6210da541bfd. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/DEBL60691864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26276d226307744ad488a3f7ff045b37b7c6441a74a99d24b0bcdfd9d1b2ba55. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEBL60691866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001f2e0ab0a7243293589b26b53b0f57ea163d0829c488c656b03abd4e196d63. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:55:07Z), 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/DEBL60691867.
Medieval Dances, Vol. 2 (Dances for Reenactment, Larp and Medieval Markets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c834be384b63a8a1fee590dbd6a5dd4897b19d12b13cb33f2dc9fdf78c706d. 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/DEBL60407263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb74400969117475b2f982318e8f23d8c6d3ec0545017296dc027b3d5c6f5c. 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/DEBL60407264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7828b12109cb1851d806aa3450f4c9f226d65fe4d24d788d9e6511b5269e353. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:41:22Z), 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/DEBL60407265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d346c9cd45e526282793465c39805a6d802742b42f7e727423a8a19affb321. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEBL60407266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6550f44e0b31c2689b39badd27042be3c53e17d5f089349fd1acdf094c9269. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEBL60407267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7db8e0137c5229649bbb99530e5800975f6153a0ad720cb7631593c844c300. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:18:03Z), 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/DEBL60407268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47be2fb3afafd02412fb0d77e8f69eac950235ae3c2f58a55fbc37b2be1336. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEBL60407269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fc47cca339e51768cb888203ac3491b6e684b609140478077231a5a4eca213. 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/DEBL60407270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f29bad9a759a1b7143be82baaf92406fbb739766e1fa05a403f68c5326425c8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:32Z), 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/DEBL60407271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8d0c3d3ad6a2c5c6a403b4251abcc4adedeebd1aeccee25283c15674d23f92. 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/DEBL60407272.