Obrint Pas (, "Breaking Through") was a band from Valencia, Valencian Community. Their music is a mixture of rock, ska, reggae, hardcore punk, and folk. Their songs include traditional instruments—inc
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 0x0e6e8f3d5820694581019025c5b1cdaa5eb77006d17656312ad4aa2c88b58197. 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/fecb2fec-a792-4f69-84ed-e444f390ca55.json and https://artists.proofprofile.net/proofs/artist/fecb2fec-a792-4f69-84ed-e444f390ca55.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 0x6471e6c4f5382fa1625931601206bcb1466f903bd5ab04fdd380cf1cb0323f55. 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/ES8021700800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17528e7a9a8ef1a376c0db32a8a7bf2462390fbfc52a895ef0990b9b2e349ad. 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/ES8020600209.
Nit Col·lectiva! al Palau de la Música Catalana (En Memòria D'Esteve Fortuny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613927331157e77b641c64c3e922b7c5cd48d0f200507e7504f072a7ae00e533. 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/ES5061200809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263f23b590c858ae83e04234122b0913ba64acb924f5d5ed345916f1ce4da80f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES8020600281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dadb017a54d310ad141d6bedac612dac4c8d6f1716eb4a650e81d4ab04145b. 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/ESA011206991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984fe18f139f0b1c90c0e3047842d19ce2fd6a67aae2ff20b9543f35e471653a. 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/ES5061309616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa029ffa6ea3b7a7853b3158ada3a516331840d42dd159e9f2c02fe83555c97. 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/ES5060864404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bf852b724f5b906d398aecb4fd78ce3f6a0e312157563d45a9ad753cc1199a. 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/TCADY1801864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4f3766aee797036b4b833a955495c6aed762cfa93cc16f93e40a31a0404d50. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/ES5950702243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e747ac295266af4f02016fdd71abd26e536e379e263c86a10a3fb1e8ca16f28. 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/ES5951605371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ceb2992a8d0017fb17592b5140d740a0f7e1b76a897141c1196e40dc3011b0. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ESA011100609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6aca63d3b6959edd510f132d6dbbfd0bf3b4e0db264e3feccdbb2fb58913093. 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/ESA011310014.
1 D'Octubre de 2017 - Referèndum D'autodeterminació de Catalunya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32299f7ef99e3df77fe074e024ae7284eadbb3dc4129f77ff2f9a5f15ad2acfe. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES5060864403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa029ffa6ea3b7a7853b3158ada3a516331840d42dd159e9f2c02fe83555c97. 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/ES5060864404.