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 0xae25de6c80a4a721cfc91bf870c3672f8fe076e09c10c47161d0fd3750fc57f9. 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/053db7e2-a1e6-4a69-821c-df16183193bb.json and https://artists.proofprofile.net/proofs/artist/053db7e2-a1e6-4a69-821c-df16183193bb.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 0xe717a8505ebdc076e183873c321f194aca13fe620bc1509cf29b94729df32e4c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA61896819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3c72e1ea54c59156eda71be1437cc56630f7702738dcbd7590ad8bef3f16f. 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/QZDA61896821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ffdc2db936d06a0477b0ab4b5b9b8bc2cd0b488331602e1fb9d309702973e6. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QMPKX1830511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29297ff32e7bc47d634b92667fff14dc99aee47f5476ef168c230427d77c0b59. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZDA81994137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd3cdb02ae92a88fca148fba632b03a5d7c45f3933b461be6c9fa0f770cc00e. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZHNA1938649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5a1189d2b70639910efc114971d51d517984252303cdb53fddf964cdd7ad31. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZFZ32028539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5082e164cbc5f026dfce49bedd40a20b77b3a886a6fee687f4214f8ab593fdab. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:54:33Z), 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/QZDA72066370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c78d4d27a73648fd255dfb4f8a3a3b9d6b9970cf29a91c7d6b33c2f69260171. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZDA72066372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c58c9e4ea68287ddacb2f5975541faa8badecb35fd904b12f0f6e772b8a0890. 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/QZK6M2081213.
Arco Iris de Sonidos: Baile de Mariposas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501b46ade93cfe1f91f492c1c1b21fe14f64dd3a1e4d207420621ecbad225e5a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZNWZ2313908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae4cd6491ff04663230ad8dce93d77af90db568c9c5834bdf424fe326974d4b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZTBE2385465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0884a89248cc331c1a96eeea3150aeaea8874d96ba0067babcbcb5df9231fa. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/QZTBE2385466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adf5942d274e9f3ceafe7e4dbcf291b85908c0ec874cad13c07f88a09d7fb38. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/QZDA72494244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70d7f4e54553b358d279f66203ed376dfab3b2f502a90b4f92ee12333c7a790. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZDA72494245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7c0ec20af29beec5918a0ad2b56d859d7911e654a3e3e7e23442a10e15bdf6. 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/QZDA72494246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabab923c9d4f864dc9d0d38a8e37852fd04d9f0f358f9664b2dbd1a712b1df23. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZDA72494249.