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 0xc62e662ede970f0148f22499dd9532174ffe702a9bf8a9e71ef54207364a32cf. 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/d4494dff-1312-4fa6-a625-5159383fc608.json and https://artists.proofprofile.net/proofs/artist/d4494dff-1312-4fa6-a625-5159383fc608.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Racing Club: Cantos de la Hinchada V1 2ª edición
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 0xc80c4411867e4dd72f2fc1ddd67185f7beb8fa4781f48cced5d633a122b8de49. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GBSMU2122772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5632d1550005bea31db3132f1ad4b9aa113d352345d5c6ca3498cfb432b2a305. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBSMU2122773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab17127d57c15a2f3af5455867a62a307d52a651a893d13cd9daa2503c1a2757. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBSMU2122774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26696ab4b49f7dbf342374211b30a1095b4e0ac2e1d25e56893b610acabc30e2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GBSMU2122775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d2a2447e4a9da25b5c701d9bdbddfc10282705f9aafce25e7210dd94c0dc37. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBSMU2122776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2002a5f1a21b4d469924c26472bf919b36b36d0a48463a5c7f372f09d9a648. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBSMU2122785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc131635c778a501c0faa49ca981ab4f9bdd34de33efb1f27c1242d3dce773c9b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBSMU2122798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8a3965b532974c617ec74337f9610247a8c4f15f8a1321ceb458ad3c37d405. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:01Z), 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/GBSMU2122800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8dc905693186012cd6b525a957e1a2bae7e5506e4499bb5dca14f052cd110. 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/GBSMU2122801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9173d2d6e93e6a9f45f7faaefe29a2e0ae6bef7095e013d3366ca3283f3f5807. 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/GBSMU2122817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2f775761fca716a68e820acee3263746006b264f7256456307cdae38142652. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:27:45Z), 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/GBSMU2122818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518e89d478e1dc7348808941e6bd10165b35bb8657948df9dd334d63811b0dd9. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GBSMU2122834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaf3d13b6a5cb833d4c2e8bbac2932c4d3e637a0747a1bcd5c95de18795be96. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBSMU2122836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94acdb7b84ef5dd364267724d88929dd81a57ac5f7b57b27ab0ca7a7aef0aea. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBSMU2122837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1859bb17272e9e1f9af1a8459cc9bb27738243308ee0f19bd76e09e2977e99c4. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GBSMU2122851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96393088037b8228e77cc5b67b464eee0cf5ff8da257b1d4805eff7c02bc47e0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:30:40Z), 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/GBSMU2122854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e32055205177b4294a508ce724f9e603a7bdb5c4dfbe73b9a29693432ffb5e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBSMU2122880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f370b68a33a8edbfc80b1fe1ffb6655402de99a9a9068792d3f020277aa2f7b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GBSMU2122882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaaa7d242b2163764ca73294bb91472dd53e59e1530a100a170c660931ed5b7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBSMU2122884.