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 0x8bc2eca822ba949d9a9a9e31aa7d0f0cd7736e6ff867ee4c4c42d360e7ccebf7. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cd82903-eb7a-4f94-835d-1b3dc35736e4.json and https://artists.proofprofile.net/proofs/artist/9cd82903-eb7a-4f94-835d-1b3dc35736e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Homenaje a Espasmódicos y a la Memoria de Kike Kruel
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 0xd22cefcd2b2ffa93ec86453e44630e0632f5da737382b77c72b957beb733c5ce. 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/QMFME1548163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd022ebaf26ab61d5e7cf190af9493f78ff5354b1c4c0ed0732a33b59d5cb6fb. 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/QMFME1548164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf044156fbf7a580e20767e22647c720bafe835ed608ee5b7a93e75e6297053b6. 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/QMFME1548168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e047a8bfc98b5c19d007f5ec799b1f0da2d7a131bf3b1c632bdd4dab179dc9. 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/QMFME1548170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f67310d57ea6b757cb087f01181b1c5efea47ad225dd2a82cbc3dd2d60661f6. 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/QMFME1548173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821b117bf8303d96ef9437e41778958820ec2113b43afeb46691585f432557d2. 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/ES5061903001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc8c4c990a0e2b8e9a26d8f872e734be0fbca59e3074d0152e8a15e8975fc8b. 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/ES5061903002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf254b515ec7b1dd5a8d52ed817befd0eeb4ba2f5f640a9e18c9785e277c52498. 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/ES5061903003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcaf58f8d0a149314a116de92d211c587823ad12206607370f2ee1c0547e2aa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5061903004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b0ce1eb01449078e5a25b200a2289030e1d4a92577539e04b0493d05c32cf. 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/ES5061903005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4686c1a70e86f9e3b49101005661de2fb2fc8299d55613c2fe5c2247cf2d10e4. 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/ES5061903006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa319aa0fe69c796d93d63ef05c21568dc99546762ebec98e8b6f8be031f159e2. 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/ES5061903007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826f281ce944e2d46df533dde6f66e37846107923e09957bfa35fae36cb7c0de. 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/ES8241625701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea20c71e8f3f2a42cf3410e38254aae695c8b5ddf2807fc0638e0823d9dfd035. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES8241625702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baa5b41e71ee1b85f31717e017e612e6a2d47d828b03cd1711bc9e60f1f0d91. 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/ES8241625703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f835151125d029168d78681cd359bac188671d0476b58d2186e687b63c6aa00. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES8241625704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9702f4d18e6a227f27f87a93c4c29299b353f20fd2125c0dd31e52c8e5807ad0. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/ES8241625705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae80039e84528c1c8954f86e244868f94403b0eeb66998473a7df524dbca2640. 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/ES8241625707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3208c0eca9d05d1c133de2712454801c51ba4478732541d486c6ab08e68280. 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/ES8241625708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca9ed3910f29691afa9256f744383dbac9f03528e95c05475a8c3cf34cd98b. 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/ES8241625709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902409fc69f652310345164ad4ed2c08e326fa8d25b2db24b731fe9e45f29ee1. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ES8241625710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576b4e78b08f28792dba96f491119d288f9fb450e6f26d95ed2d1d6eba3d2bc8. 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/ES8241625711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aecf05b65d12092db55f7b5d5689a19f950f52e143429fe055a2e48b2838da. 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/ES8241625712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0387c1883fd39acd2d610cfac99cb49314129aab509d7be5ced8f7856c88e377. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES8241625713.