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 0x6ac0181b7f772296219a941551af3b5969f2e499ed6940ea2ffdd5948adf8aa1. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3a4ab59-ffa2-4c04-9f27-cecc97e107b4.json and https://artists.proofprofile.net/proofs/artist/c3a4ab59-ffa2-4c04-9f27-cecc97e107b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Hay Lugar Mas Alto (Man K’ot K’olbal Che Sib’laj Chikaj)
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 0x21b93a23faf0ab8dbd57ef537f411a928f8520deec234944c8692ff54169db63. 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/QZNJW2084827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab75a58547a666322b02f4de9b98d9e3e6090826f5e6c590ae2c96bb05e5bf49. 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/QZHZ32190827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47f7767bd728e77aaa6bb48b80e15f50d680dfc47989230639ad61a4908819c. 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/QZHZ32190828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948d8c8df43a082207d7d87da04d2eb90a38190d31d77991a0b653450bfdf2d6. 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/USHM82232047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff961ba7264b46ed621f5d11f8100aef092562e27e034c7def3309a3be9685d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US7VG1914819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd88a17d5426645546fbd7f25aa2c488495d9dfe952a2f2816f2586d311b21ca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLS2066411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab75a58547a666322b02f4de9b98d9e3e6090826f5e6c590ae2c96bb05e5bf49. 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/QZHZ32190827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47f7767bd728e77aaa6bb48b80e15f50d680dfc47989230639ad61a4908819c. 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/QZHZ32190828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc70dfd47c1084ceccd8b761ed58d9cfe2e1fdc4260b9415c119c727b1a08b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM82232049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbe2766570f0ebb34e8df5cf30c2138da892f0048a85d4f3e00477b6d981012. 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/US7VG2204244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd380b0f38bf470927de5b66e51b5d18f34ac157811a28b637eee2bf60f71c86. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USHM82232050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706abeb980e13b273eeb074fb2a092ea6d12d2c05ae5491f71472b0cf606bf17. 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/USHM82232051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32126ac624c9551d0a05a446aea366997fbe2f6da884f86cfabc392f92e31cb2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZGLS2529763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a2b27595cb8a4092755ffa6f36cdbd8263a25e092272b34c6faddc3f47f104. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZGLS2529764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bb286e8ca732bf951df2a7029464feae5280f02b6d7c3f54ca3c29d361bdda. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZNJY2525742.
Solo de Jesús la Sangre - Sendas Antiguas