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 0x5daa0c20734eacac54ae3eca74e9e287d84875db5517adbe697d3c65aabe0bbc. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70523622-ecd9-445e-978c-5c3dbbdb879b.json and https://artists.proofprofile.net/proofs/artist/70523622-ecd9-445e-978c-5c3dbbdb879b.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 0x1ef336149e6014628168c95741f7a928b6b6b8752ff45ce1096b0c22eed22971. 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/AUBEC2057965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad5d5e8e873e0877cc6f821a8b38e7cc6d064d8f4aa9eabfc0794dadeaecb06. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEY472272958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd22de2efc66b0244e8e5cae3d0139f1e8bcc38a2d2630212c07eb1a8ffaa748. 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/DEY472272959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417378414f5e43571f0aed099895f2bf56d322d9455746b06db51b1a6cc3618b. 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/DEY472272960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235244e7a9ca9e485f4e388d4130eb1e5bad92c9e91a65192fad4f82f479ae1f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEY472272961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4983872429e2d46bbcb36a973295a2281a9b118d1556d6218e8abacf406f6424. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/DEY472272962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425e94ef1a596ba0d096b79d9018bac91c2348994aa06b0b8a24be980a1848f0. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEY472272963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da531d9d15e39e271500ae61846ddd494b86620c69ffbad25c5cb4989dfbfb4. 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/DEY472272964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff5d87b67cc8ac2117bf031da3c0a12133da2d636f1ccb9a8defcc3fcb51ba. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/DEY472272965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713bedfed4f3858481307f52c5493d7f17c8b556b336bbbc1fefadab5d8c9f5b. 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/DEY472272966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4df45dc4f7266e08b1a1584c5585d694b3dea8637221a8fa6fb05f35e3fe49b. 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/DEY472272967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5909471d4eadfce9fb4ea855d505381617d618ddd8fddb610a0dab7f09112b0. 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/DEY472272970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffba1e37e5fe5d16f9497e72cea144b7dd9d0591e94fe5a3bcb5e0b94cd16cb5. 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/DEY472272971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ca0df36c3f4cc9385e252ee2ffc3ac78f8824947ae0fdc82dce2f278fc9cb5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZK6F2571461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcc5a28bef636084c9ecb2c870894bf9d8778aa397b2293714d3ee0236df595. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZK6F2571462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d77e7b7f4ceec98f015fdc74831283590fdeaa565c515b449f5aea2bcce8bee. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6F2571463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5318440da5b3e585b3169015537b1fc9418feab547afe28b2e4e042983c0e759. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZK6F2571464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf56f7882005bc9fd65037f4f7dca61b9de6229b2960c79a55d3ec1d69f113d. 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/QZK6F2571465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56950c880870b32a8f41826313dd460e0aa98edb88f91cb820dc0845f7b7a1f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZK6F2571466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50291a14fd46676b4ff57e73f3f9f757bb852665f0db456009d063180013dc45. 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/QZK6F2571468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcc08f2cbb0e124313a6185582a62a5bc5346f0969738c16302635178ddaf20. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6F2571469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd161ccc7cb10a2ca749923d142863badc01c880b611ef7cfdf9336cc0d5a2d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6F2571470.
Patience (feat. Jayhood, Les-Ego & Meloproducedit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e455f1eb7192fdab4715411f0607e2a3ae204c24e962ddff5b6095293d714a. 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/ZB62R2200048.