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 0x47faf35dd2721a46042350a8239e18683b9070096c2970aa865adf2c3595ae32. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b5ea6a6-a82e-48a6-b36b-4f23b5398d66.json and https://artists.proofprofile.net/proofs/artist/1b5ea6a6-a82e-48a6-b36b-4f23b5398d66.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 0xdc9a421593d78aa7d6e51c98cec9e00c977bfea59f06340e8e19e151d52928c6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHZ42056569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e44c7c7320074c48ab03b53a9574d57e06be69d900a4dc98c948d25c4a7c950. 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/QZHZ42056570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ad6761857933f643bda4cb1eb62bfeea0aaae754ee05382963b619fad63789. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHZ42056571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684dbc025ed7910fa10f8116a75a98fa2e38cc5bf30a71e0ba2b11974cf0f53c. 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/QZHZ42056574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756f4306928ce0ea02bdf2b8878cb927070d5f59eaed5a9e8148b261a24c261f. 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/QZHZ42056578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941acd7a6daa7e64edd1efcad7b485e4df78847cd6267bb4652860e86d998cbe. 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/QZHZ42056579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fde6fe9783e3866ba2766c26f1525ec238a6ada636bdb054dda844eca1925d4. 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/QZHZ42056580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677a5b8806f297d1fc25b227f721e0bc9dc6f05f8b0115964de6a633eb707fcd. 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/QZHZ42056582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce91ba0c16b5fde866f62a8f26bd7496e45d621fdb43e936ae9d611f832adfc8. 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/QZHZ42056584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455b3ee71a463b761031d2cf7ee804af1451f3f2f18739c74095ca1e342d51e8. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/QZHZ42056572.
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
Quem Queimou O Evangelho Apócrifo Das Bichas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7a9ad5e3054518f699a854d2b441d035e6837498652c054a333f20a2174a2c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZHZ42056573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc50c244651916f1729b91be21d5e29d38ca7e5be4749f6feb75ecc2ddff49a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHZ42056575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b5598be42fece8eac2496ec21cd76db77587da9c0e6e7fea490dbbdc743f7f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZHZ42056576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb71d7846d7168e0b3ba6be944f183f26c047948a1c5f7c412ecfc47006f844. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZHZ42056581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45578f42c185172b9892ba68d03923988f10dd0f279589d3ca68a4355e4de852. 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/QZHZ42056583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa33ab732b4e0cbfd957f6f6b020a632d41a5eb6f321aa52888baa25b089d80c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB1646616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d1ee6a67c77bdf21072b19320e3e0d260dc6d025c126354dbb2b43983a052b. 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/QZTPX2473503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609aed1bf16ff7ed52b11d9d201fa95f596ad45a2374e7e5ebe03f7a8f72c23. 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/QZTPX2473504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f83122c4e893f05b8a05312d43c26d83ea0c5c68c7caf49970eedfad1c239d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTPX2473505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2619241b7f40034265e88194bb79e15cef7458884faa4a834909d963fba72d92. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTPX2473506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2593656346c6e242e2e6aa1609eb62fa2925cc803d5d1a65aacc8312b2ca80. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLLT2334674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3914e84f4ec77508964e3c85f62bbf6327e34581db7009d569d8d48ec807cc2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLLT2334670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f62838924d9df7f64c3a6c6f30e86f5eea935c7727a45878a1de00c9c84f997. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBLLT2334671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6530d3655d982134fb2b49645e35fc9b72aa26e48b64224d4d8638ab9c52593b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBLLT2334672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41b87923ec4a45f1956723cdd723db7357db7a8d801dd9b02982214b04af1af. 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/GBLLT2303048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4712636a444f1c494200298d916e63643cd20ae84e359316f55244b412e1aa. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/GBLLT2303051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9d9b6b6728c689d47216467a54ba75a370291c1480f22b49421c6f3658cb7b. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBLLT2303049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd249eee82344e58f6cc23c809a64994c849537e3431f52d5251571a259e42. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBLLT2303050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4322710ff3e6df30c638ae29eb9ed80094626a39167a88681b1a6dd013699a72. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ32070193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeeae0660b27c0cca437593e46dd88c412a6d27374b93d7127801d48629d24a. 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/QZ5AB1912970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbea6c9fb1424be678a2161e95375f36b6d009e665e96a9fefc0a89bb3b37d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB1912972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaa5d43013db60df9f67474a5eaa8d9b36b172c214d633cffd96b09ddaee3d3. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/QZ5AB1912971.