thumb|Marta Gómez in 2013 Marta Gómez is a Colombian singer and songwriter. After obtaining a Best Achievement Scholarship, she graduated magna cum laude from the Berklee College of Music. She current
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 0x500ae1ade54a040b48ced02e26d5ae0a4facba2ae0010056b2930ef0b3cbdfdb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29e01fe9-78f6-467f-becb-8d4190097064.json and https://artists.proofprofile.net/proofs/artist/29e01fe9-78f6-467f-becb-8d4190097064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Coloreando. Traditional Songs for Children in Spanish
A Woman's World: Songs of Resilience and Hope
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 0x5bb99369307a21ba4ab03242aca92f1c73c257c932b36a1ef799d20098f5559c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM20917275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe620d24a4b456e13ba496c0ec955e7f058ee091e226c22b8dc7c6d271ba9e789. 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/IL1020802478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5d374806a997501492f7379ab1e02e19d057c1d3ba82f851eba82c5c5cf75. 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/IL1020802487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1846f7b09d0948739a1d6be8ac34bdf50583e9cef7bfc7e8b49e0c93555367. 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/QM6MZ1863949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c4e5fe256e4e61d66946361589c3a3c2ac469b3362260cb1d574bdef688c5. 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/QZ5AB1639339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4b62791900292e487f355303e08dafafa2d9b06eb4e03865b47ca0c77bf19c. 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/QZ5AB1704082.
Todas las Palabras - Live In Buenos Aires
The Idan Raichel Symphonic Project (Live In Buenos Aires)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a05f537334fc5671c76f94b3bfa81280f80e307f6b764285851c5f034f806. 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/IL1022112404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222bb4b446b37e05ba844adf183dd1a3d642b029a8b7d9595955de50cd42c3b3. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/IL1022112405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c794dcfeeba642add410e1649c1c9a46a08469bb54d7e7cef1992bb30eedc7. 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/US7VG1626425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46507626227faebf80a30625ab8a26f877b2508f16e95bd087e5615d6080347e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHZ42288598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba6b560c31e0c474cb507db64bd1e0e0d50a3d2524956f996075e2c18b517d1. 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/CLCQ21500908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f4500b7cd587fc49cfcf57ae45bfacb537b469b3782df85eeeebac5689b111. 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/ES71G2412144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6165036cb3d996ea311422369d941b77ad10014ef32dd1f7b36ebd6b225b9697. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:26:02Z), 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/IL1021306047.
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 0x490dd5e21f4902d4772b6a42e2bd98d3fbbba71fd1a0f0920c3c8b9ba07e45ce. 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/QZMZ92064728.
Y Si Regresas Otra Vez - Live In Buenos Aires
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafa164dd121bfcae6f42e7b9c2d7c390e72ea05006fb775f4142b7e6a8a8707. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL1022112403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf18fbe7b28689a1eb882e274276fcf079b4154f9299794f026e587f203ed803. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZ5AB2166384.