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 0x5b8039aa410ebf33b0c95ea2676a35bcda87408bf39f4050a97b6e74c635e185. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55cc24c6-ce43-43e2-8d7f-9dafa67a2d79.json and https://artists.proofprofile.net/proofs/artist/55cc24c6-ce43-43e2-8d7f-9dafa67a2d79.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 0x5e6d5f2d2fcd24a8533a6b7ffb39d4e17b57e7eceb9df4ac155a0fafc3b76a39. 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/CAE562327601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6129fe5dda537856dd8f64fed6248a3e1139e4504900d68dc9aa7b6387a7176a. 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/CAE562327602.
J'ai de la merde dans la tête - Remasterisée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f9edfb24635272d24566787c599db64b4637340ce4aaa81edf71f9cf079f20. 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/CAE561914805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bd6d3c6e204c96dc69fa4bfad788e3f67d23b01f6fa665fba0b85e66777d2e. 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/CAE562331008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa9950000825d8d071c1463b20781b84d9482cbac23f31b20b687689217f25. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/CAE562331002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6a69112e92e0d60d9bf3232fe72eb74ee3e7c96b9dd7fbee819031f944ec2a. 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/CAE562331006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd0dadefb167686c8d23185ed2cd359fb48e9e44e104ac49ab41f4e53477605. 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/CAE562331007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bd6d3c6e204c96dc69fa4bfad788e3f67d23b01f6fa665fba0b85e66777d2e. 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/CAE562331008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6abc3cba5d692bdea9657f959d9e00617f7dd5367e4f42226d27071aae38142. 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/CAE562331011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd857c21e5fe38a344afffe53ebeaa2ed8c68782e9f7f5eb652c4e6d4af1229. 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/CAE562331012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5824007f360b100b26a3b8569e2e377cca7e0d2f97f441e29439822ba78be6f. 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/CAE562228701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3dda16492c9c7b2d20825257b43fe5d41ad006b5d80a1a73af5d176c4b8514. 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/CAE562228702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f562c8c586192e6c532a5f30623376bcdf59004ca1511e25c0394bbead1afa. 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/CAE562228703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf009ba7999ba18b1cf225fba8b44e1daa924146e200aaf37df56a6464202055e. 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/CAE562228704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d846f62adba45f33cd2661976d0a35bb16a2e5aceb1b62d046aaf46c3fc9ed8. 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/CAE562228705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf22059113866b0781bcbdc7c4b5fcebec3d22f859388ee8ec0e71bcadc50ff. 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/CAE562228706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846491dbc3027520262fbd14d94c127fc87df927759bb891f7775a3653c2ad9d. 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/CAE562228707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ce2d717bbb610b2e6d3a4048baff75fd6f6024d0224a1225b1cea5747aa577. 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/CAE562228709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa5a89742a8b9851afaef47bcc3f120af894386d3d98ed1a1e18c4ce5b1391. 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/CAE562228710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68704af25a33b68050d908474cc03e1dad1477a0d3f49e148ecf990a1005c852. 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/CAE562228714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd589a9420549024575a9f3b416e820c396f1437d5ce41214fdd4f208fde864. 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/CAE562434002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7606e8a0e9020bcac43130bef1d766d35017e732483b9115e35db7de12b9053d. 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/CAE562434004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86cdf258b7ec3dc2d4e8782f21b098324efac07a3ab5230a4d3db08760bff5e. 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/CAE562434008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c15c7df78f0883ec2e29a250ec84337b8b4e84fde2d80dc4093489b9a8518c. 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/CAE562434010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9520bbe98389515fa45b371b0267c5a5d5ce8c0f22c8620d42f0f43c9161a89f. 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/CAE562434012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2c3cfe89cc0b2e2b9df6ff26d2ab5fc5fd38fbf18d9c6827e70405db77f48. 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/CAE562434013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f08f50c327456455d58662bd5b358f3dc2445797ea0cad4827d1ec929c9490. 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/CAE562434015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2982900d72799873d2b0724324ba59479c2a0f4cb761aaa7e64ab1195b1d61. 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/CAE561916301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ea2c0f1ef6a532bbf3ae79eb8f6f1cf3b58cd1ba3c9fc80eea270d35472585. 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/CAE561916302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b345c72a8ea5de0c6a948fde6049599f3b909a9e747ebd0a97db1f734c3cca. 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/CAE561916303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcced45e059c882e276b08e9f518bb20b66c823b30a7944b984f7bb05a74c75d1. 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/CAE561916304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d46c0ec4abff3941546a132399a9d52279c7a1575482e115e151ffc59ae72a4. 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/CAE561916305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f2e339113520558769b1514c23a1a4fc221791d190ba494089229f89f9df54. 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/CAE561916306.
Nager dans le cabanon d'eau - Wattershed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eb5cd9cc247008b0219f9210bed9239651d60bf82d6362aad2f2ac243814c6. 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/CAE561916312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d26c1bb75946d73e8a69736de5a8bead607c1d5d7493402b3e83b33f852e67. 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/CAE561916313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5df93c4882200c53e65f1769b4a5d0a3f479a0ba2870663884a5a0c9c99407. 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/CAE561916316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45b581adef04d713787d32de65bc036d34de0a77cffee6f9b722836afa506ee. 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/CAE561916318.