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 0xee5af64adf41272715073c8d3fffc7ffb27224ff4e32ab62031d303cf64d2bf6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bf3c0f5-6e77-4a2a-bd80-f58ded062a8c.json and https://artists.proofprofile.net/proofs/artist/5bf3c0f5-6e77-4a2a-bd80-f58ded062a8c.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 0x170c1edee8f5b2c5ec8ce0c41a34eb151bbd7b6a399c6c92a1b5f9eefa804383. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:22Z), 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/FRW109079002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065f98f22ab2bce6a828a0f4a33d4b5897a224c1137fbcb36499e884b80f6f2d. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/FRW109079004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5847e3c7bcf99865423c23f1045f1ae015e7582a3d64689fcfd99bd88fadf1a1. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/FRW109079005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad1f99472a7581de5c54e66d396dd9789a3413a030e2418b20f1cd64cf6c385. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRW109079006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefdee094465b7e351eef9e67bf181ac362f73bd10c7c9b7551c2011d1d5e4c0. 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/FRW109079007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e62781b94068014d74704ada4ef3929db9dafa632772c82c5496b4c99cb452. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRW109079008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539587adf1e31070dc4f0b8be8c020b7ff055edccb5dbf52ade9e970062eb09. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/FRW109079009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0967d78ded87c63c862cbec6ca5b5316f600e565f4fd95db7c735e50e4d176b5. 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/FRW109079010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e70acf0f8ceb2e5b26d0e6e2ac1fe4caf7dd1c3331a14aed67f1495b8b69a. 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/FRW109079012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7154c55af4a98fc211781d130458dcc571eebb6c077557dc2be66ecca18ae182. 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/FRV320993613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cca325db9c819dbb88c8dec56daad898af370b08ba5f631257f3039681035a9. 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/FRW109079014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe2c11b7c4b883addccf7bfccde8793dae3c7ee7b9da32c8fdeba3be34d3075. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/FRW109079016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849e7d00606d39277995d3aa499ca6d727d25e38db7d4c0450b30b4d46fbb3e4. 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/FRW109079017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02a6f104bbdedeead10316596146f546982dade827f6983c95536efb4374cd3. 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/FRW109019003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6707cfaa6eb3b4f4a0f6a3fe466aade7912fd32b1da38d31f129d955be200997. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRW109019007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff9ae7a8e0be78c11744a22c67dce89cc54e06e4082e555a10b2dcc210222b9. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/FRW109019005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34496e3843a01f3911534c79d02e1da0b9ded6d24381ea855cef6f985579de3. 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/FRW109019006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b0e0efdbb1d2969263cfeaa1d65f1adbefd027628c8bcb69b5f630ced13230. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/FRW109019004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a262063cf988b94dceaddccd3d9da43028ba0b9b68c34af5c262793202929c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRW109019008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecafb436a112481a6cf3c4ab98f284f8aeb73e5ee4eb57744d46c60913c57f5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRW109019009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ea995fc9d1d643d7867243156d661cce60c5d6b6e66804be529bc112940f9b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:18:30Z), 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/FRV320993612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade2515951af0daf3c223b8f67834284a19a97bf76a675787d409cd231027b69. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRW109019013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6614c6698331309a78cbcf0b9f25753644dc25d6970d1293f0925ccaf8ccc37e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:23:37Z), 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/FRW109019014.
75 chansons comptines et jeux de doigts - Enfance et Musique
Papoum à la crèche (Version remasterisée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1cd33e8abf14f6ce1174b28271454d38404bbb6b7cca28ca674fdf5609b229. 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/FR9W11701524.
Dinosaures et autres bêtosaures (Version remasterisée)
La mare à Toto (I) - Version remasterisée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2760d042ce340937c7e5da96e501ff2ead16c0c8bdd9ec4515e092fe5eb3ae4d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR9W11701585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d1e5bfb6f9a788cc43fae05d080fc0135b2362dab47d062cb4ee20cdc17805. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR9W11701587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dc9e634eb5c50a894ec6fb6890ba143e442544c81a2cf5413b1e4ff87dc9fd. 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/FR9W11701589.
La vache et le gué - Version remasterisée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6f64ca50a2bf38a479799f96cce31b9fd50d86c5f7040b8eb1461229826c66. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/FR9W11701590.