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 0xa4229a8c5feae6ae7646f240ef036f776e366be41e0bd27893a4738b6bd6624e. 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/d7171a92-6ea4-4019-99ad-00a8a2b3e245.json and https://artists.proofprofile.net/proofs/artist/d7171a92-6ea4-4019-99ad-00a8a2b3e245.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 0x03c26caf0527a84ece9744ae8bc2dcb669441e9cb02832c111ee8cd2e9fdd9bd. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES6081244201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d16edf252d772b2b74651547375762fdbbc964af64960b571364ae7322dc945. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES6081244204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14e07420985f893e4cd3fc82629006299bdf343875b41df9985ba1a6451bd4. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:04:00Z), 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/ES6081244205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f91b130daf031ade2e30bdb21501a2700a6b6e832806cd5c30fd5794595c9. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ES6081244208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a44d29f7f7a7e8a28c825b7e1b6f532738b185a13ea9f0d1d7cf18f200d4dd. 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/ES6081244210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a0173c20acbddae93928a8a292acf027f921629c284ba65399d3c67fcc1ecc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES6081244211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da42b7cdc143336c60409392b198c50404ad54805eddba40e024fd13e0e4d9b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:25Z), 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/ES6081244212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa964603c038139738f45fefa2a333fb01feba2baf2ceeff4ee72996fd6fb35a1. 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/ES6081244214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf170dfaadd82056e6eb44903c3183e885db78e8db0172b27ca5d5c847d395249. 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/ES6080940109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3dbb4ee633104645fac4bac9d4cd65f2f0b80e8715ca1153d0c533eaed5b53. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6080489205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7386b39fbbcbdb196e3b9e29e96028da1b203531e4cf7f357b8a878aef41cdc0. 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/ES6080363208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7386b39fbbcbdb196e3b9e29e96028da1b203531e4cf7f357b8a878aef41cdc0. 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/ES6080363208.
Presenta "Metamorfosis" (Creador Series Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bad42149ac0c89909e39f9b20ec734997fdfd216b36aa52367706ba3014cf1. 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/ESAAI0190682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9c35812c5be37c9a32fefc488422b8e854587369c9b57a17586104e4ac29ba. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES6081340101.
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 0xa4e2d428c18d638a9cf9b6f6a95d674f3d601e33d4f2f48e4744f93f2fc26566. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USX9P1342477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4438719890120b816a9b778dd21a6794a6469919288390e92f99181b48a70921. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ES6081240106.