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 0x9a1fd78f77c38766f826319477aff62e61608886a9a136c4de29b052da1e41f5. 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/d3d2c426-e20c-443c-9033-bd38cec432c5.json and https://artists.proofprofile.net/proofs/artist/d3d2c426-e20c-443c-9033-bd38cec432c5.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 0xd49b6a2b6c42ad4b4bc9833eeb373532657bdd3208a4eb4c9c5dffad1c1308c5. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QM4TX1823728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a603ef486e074fbb3c4a5bbed3c9ffb77936b192e1009ca21a3ae4e24dc35af. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEQ022006873.
Currents (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Currents (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e07fffe932eeae1c4a25a1bc5a47f7ecc65d02429c7272e4f38c28a3ac6797. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEXZ61900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41712a77ad7c94aa3cf35671ebb967c81b364e7f7ff22369eea27fc4588201f. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/DEXZ61900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f4ab46fc101dfb1222e425c046116059ec06baaa49fb7281ab895e7fc44932. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/DEXZ61900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e907b148ba8448a68de72798101271a4c2270680111a17eba05eab7e99da8c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEXZ61900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aa9e9c50ecda3ba803c73e664123dac53fe1fcd219c63215dae370792910fa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEXZ61900342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8ea37bb6b69a41d1e06b0ca992e04baebf521a5baaddb73d5d1679bf12db2c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEZC62339408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabffc5f8431adcf3a525fc9d2638baafbe864c27ca036aece3aedac5363d2606. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEXZ61900397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe123d7066b162e124a3beb3623c26ea43d01b8c95955f623131d34cf8350d54e. 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/DEXZ61900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dabb9caada9e2f4d2ea2e93ef412a3deeef7b82da0b82a9fab60007f0f85dc1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR9Z62400878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad29b24204e087e2544aa0ce23e96d5c8793199fddf551f932abb0ad59e5ed1b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9Z62400882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efc9b8c13cde41496e6efc3b16c74c50738bd1bc20663bbf25a6913b61a94e6. 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/FR9Z62400883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89fced94dcf2f35bb5b74e92e9e875af779c51d532d31107d2223750356302d. 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/DEXZ61900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1061089fd4902706ef2d924b2399ed773f8e3f8d38ad6405cb10b9e7a2aa48f5. 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/DEXZ61900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde67c130183e53e028947a381cba8f42ade611c22d90008db3fa7fd2c652e506. 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/TCAER2043268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf03123b8912211c7a56f45d2f56d1b2fd163d267059da06f6f9092513ec3670. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUG12100669.