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 0xd24602bb8f0b4438cdc6272b5677a8eccecdbe497b2c7d92315347d103e3a4bf. 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/82b7dd5a-67e0-49a8-b3fe-37a76e25d704.json and https://artists.proofprofile.net/proofs/artist/82b7dd5a-67e0-49a8-b3fe-37a76e25d704.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 0x442834dc395c6db57509dfc797260e3d132962f6f5e0cf4b8b2b6dc161c2e211. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZXLZ2388414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58af76045cf16ca57c718fc3d0559adadf74111719904f9076b51b74e0250d20. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZXLZ2388416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce2e9ef666076cd3be6c19b30090dd6475c456f2f9c1885771d3aa1cb397aa0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ972476660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ef33a9fca3269a2582885ebc8ee025eca914a1f19b98b221eeade3795fc60d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ972476662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa359c02feb9083013879a6a0674bc14646eb08945a19180f3a1c887e27a3c35c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:52:04Z), 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/QZZ972476665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa822d7a28fd09d41b8c879daf399c5792477f5b9610f0ea9bdfea0535bc4a43a. 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/QZZ972499842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3362fa585dd6317d2bc048f06c0ed1e7391918ac8159014366be0f56d8413a6. 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/QZZ972453659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1d888ad1681a24013da6f3c69a2757cca2c53d68f174188b1c3d1969ae3655. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:44:55Z), 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/QZTB92424432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b3e2864924a0336396620498488397c314569398cec9dd64db940a865a43e9. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:24:20Z), 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/QZHNA2568354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed739c160afced058aac46c8c891a1a39bc15b7eeb8d11069887f67681fbd2f. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHNA2568355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbc04b8aed37198636ec62c05b511dea15ae301860a2f490e2d24d95cfd7cad. 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/QZHNA2568357.
El Juego del Calamar, Canción del Carrusel - Huapango-Merequetenque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5129916a3424dcc1498e56f0248a7416bef7fc9f32923de92af314753f664f8e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZXLZ2508948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a2bbf77b161ecd2d43e17eca54739ca97df2ab3677372694e60f7b318236d9. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:06Z), 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/QZXLZ2508951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb5558edad4e54f0921e5d3543210ecca4c977e4d2bb2da37579a9e4abe9364. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZXLZ2508952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecac6589dee742ce10ad4bb63f7cfd48640c8937295a118fde4f2c97fdf54a7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZXLZ2508955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce2e9ef666076cd3be6c19b30090dd6475c456f2f9c1885771d3aa1cb397aa0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ972476660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2a2687f3c9b13699de538b6d107914466babc3363322b62c04046ae3f076a5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ESA012353445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3362fa585dd6317d2bc048f06c0ed1e7391918ac8159014366be0f56d8413a6. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZZ972453659.
UN FIN DE SEMANA (pisteando & los compas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c36e326d150ef7f745788fca0d4a0f1bc7d28eb41bbad6b8cbaf5a97d7bf6a. 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/QZZ7L2592901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4e96e8c90d7d67db058ee3db44158313cc75745ce90a1adf615d89cc587eab. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZZ7Q2517879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2a563e87b45f1b12b5dd5a665e276a2b23106cc39cb7a2713d8f02547f9ab1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7Q2517880.