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 0xf3a30d201caa368387ca053354b9b4b4a0205d5d6c9011a34346dccb340e05ea. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b209f3d-03f7-4062-8f6d-385a498ccd29.json and https://artists.proofprofile.net/proofs/artist/0b209f3d-03f7-4062-8f6d-385a498ccd29.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 0x84696ee3538995e7509032b8af430ddfd9f25279c2ebcf5a167bba030b3771d5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AR6DB1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea279e20b33d0ce9f12f39a9fd99ffb93d43f11e7bcfb67302df6ad2e98d320. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AR6DB1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3c0f6ebe56b53c765f0443eb1b18900c7ada490039ff85b43bc19ba79c7a31. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AR6DB1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1bbc1b2ff958e4b5571d184dbf7c3b8578db83e950f96f408bd0b05f0b2517. 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/AR6DB1700002.
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 0x0d1c817c62fa30bb7d3459480564904ac857678216268e51b2d8f45a71171379. 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/AR6DB1700003.
Leonor - Modern Bellydance Sounds, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1ae47bdfdb5e5bab396139a61c5cb5b95069d8c360e8947c6ef1b5abe4d5ab. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:01:20Z), 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/AR6DB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c1fe61e8da90ff021ea9d4619439a0d42c25512fe1327df90ad6ee2f50689b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/AR6DB1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2176324f91dc0329572d93ec750e9d3e37b4beabc0dc511c03e152b202337d32. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AR6DB1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8359ac6285d7011825a7f20169ff50b421d16cac234d83c6ffd4e4528f1020. 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/AR6DB1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1c83575baa9c5fc01e711c3e105305ffbc4e6d838bcadadfff64ef6626904b. 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/AR6DB1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9276836e1568784df5091c0e6a8fd90af41d52dce99c1235d3ad9c59f03c9d9. 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/AR6DB1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506acd505afc3481dbacc81ee04860731236ce4fa060da0aea03db33ef447ba2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:49Z), 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/AR6DB1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6f5c31cbc7fda7bf9c8d8daefa2e57030ea8daff139c06d2dc6b78d6652527. 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/AR6DB1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59394db3448f6a9a4005b259e45130fb523a4d5b76d07f95fef7e197e95ee893. 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/AR6DB1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf74c98f452c7adb4195231a868a0bd7ae443bac22d477f96d9c16ce1a2c93cb. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AR6DB1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6013ea419536edbbdcf4540a76a868b4784a35812e1d6881de496a1cec0995e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARF052200657.
Bellydance Move it Sessions V: Lucía Tordente
Bellydance Move it Sessions VI: Leyla Raqs BCN
Bellydance Move it Sessions VIII: Polina