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 0xf00191733da8a109a334c990216e29feb03fa74ab542fea6852ccfd05da4434c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a4cace6-ebca-493b-9089-affbfac6480b.json and https://artists.proofprofile.net/proofs/artist/7a4cace6-ebca-493b-9089-affbfac6480b.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 0x4e17ce356f6408c546fb61d273651cc70768e14f24571dc9d3e47f2505cadfd7. 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/TCADT1823370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a82d5dcff5795d98e34e278b573aad044178735ad299954b727bf3665383bda. 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/TCADT1823355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68edcfbde258cc7911d6123bbf0df39bbf2beabf4f3e111fffedae2048cd614. 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/TCADT1823367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e17ce356f6408c546fb61d273651cc70768e14f24571dc9d3e47f2505cadfd7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADT1823370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd720475d17b7f3816c01b287b83c721dff198825c5593fa86ae8324ad3166f. 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/TCADT1823498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d55243de7a4de4d63eb882834e50da5d4502d19de26f849e7a8aff8604a05cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADT1823618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81869be3354086cf61efca05ce415c441005a931f540538d3d518fb5477c419. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAFO2173883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d551791c4695eb5e64d40fbb346052ab6c038d4b845f4bbb52938d12e7b1b67. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:59:08Z), 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/DOA211501702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b52dce698cc6bfd380d75e909777d07b60bf42c8cec318460a56117b0a7ab7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DOA211501714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76dc8c432b2677ab3c65ff234da26d7b6d543c7cc2f530a5b2ab91f64e2a8c1. 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/TCADG1710148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6539ad376ed1903b8ca6ccf87ac650e3a35dd9ba4f49bcc22da4ce2b7255f5. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/TCADG1710239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345b822d0203d3cccabef976f04d5e23e6b13c5c5f056d6dfc3cf7d300b19a0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCADG1709821.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76dc8c432b2677ab3c65ff234da26d7b6d543c7cc2f530a5b2ab91f64e2a8c1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCADG1710148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abba420ea719b2dd4b6bd8adc9dd5ccf8e7057694b941c322b56f6b253db67c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:24:47Z), 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/TCADG1709849.
La Historia De Una Voz (Remasterizada 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345b822d0203d3cccabef976f04d5e23e6b13c5c5f056d6dfc3cf7d300b19a0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:37Z), 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/TCADG1709821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e7e4a239115f6df304f50e782fb6242252a937c6287c86f679b6338d5fdd6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:14:50Z), 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/TCADG1710087.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dcd59046e13ef6011e275e2e98b7315066165e7377833dfb5a7da6e8477f9f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCADG1710263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366d7acc089a895feafbf51ff21fc45e8a83402978b63bff974103eab640879. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:26:45Z), 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/QZKDT2300545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d46efe17dd92614558ff5e6590e18dd2c70c904b5ee8ffce4cce7f763ef287. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/TCAHF2350673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef4c5941af029eacf6a12e9594f1e5475322ef9d24e2bfae7b4c1f11ce6acb7. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:45:32Z), 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/NLRD52254051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00fb94906610023213c6e66445282e8d69a0466b01f39ce7036875132f3685a. 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/NLRD52254054.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3467be82e31ba7ff88f00047c9676a5f102bdc62d2b7928c48f54bdf75cd67e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCADT1823346.
Voy Romper La Cama En Dos - Remasterizada 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ebfaba87b7508968566e413b6a4e4461c6cabe1ab07db6f3452c8db5ea0c89. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCADG1788049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1326025926fcd8e0aecd5448d5cf11acce6c2252b99db9d34a66b1316cc5b8b. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/NLRD52254185.
30 bachatas Pegaditas Lo nuevo y lo mejor 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3193965bbff1d74bcd46f9713177b9f3a68509d3cdb9795d5b21a59f25936da1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USALH0701928.
30 Bachatas Pegaditas Lo Nuevo y Lo Mejor 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80de4692fabc22bfe679c94010b979090585f1f88b868f567e066b99043474c. 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/QZ3ET1800003.