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 0xc8c933ce415973c1c8f072f181deb30cb138400361bfbb87e5c22b9603e4c9cf. 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/c3be40d6-2885-4ea1-b2fa-336a18f6f011.json and https://artists.proofprofile.net/proofs/artist/c3be40d6-2885-4ea1-b2fa-336a18f6f011.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strange World (Hörspiel zum Disney Film)
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 0x6b2aa0a566ba7e75ad24314991a44f64c6af204f2792cacc38cbae33ead040d7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:40:14Z), 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/USWD12219240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac5a595c40fb6442559b57343d6860f26b21bac3faadf4eab13f689fc28f49. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/USWD12219241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8956ea9d1801ff7f9047d57251f302fe8b1fe127e6948888f83bb3afd947fcc1. 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/USWD12219242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b957eaae1ccbd89525acbc7a2540dd06be88e87469f80cf363f2bd2db11ac3. 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/USWD12219243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f384733685e32917e7dd1b9183b77ded8177885f388bab664124fdb3bc6d3f8. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/USWD12219244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc0181cf9413e7361992be1ed84605dd86eb3c289621c066248ab74b25d8147. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:36:08Z), 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/USWD12219245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8050ec6347ebd272acbf874b2f303bcf67675def8fedb9c05348948922486cff. 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/USWD12219246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3243820dedd35ca47cf9e150f09b7e5516482f9675237ac11cb15814e116ac1b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USWD12219247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a793cc657cd4b3dcd96300995d6987196c8c55ab1d46887e2f12004c2ae58b. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/USWD12219248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb983e848e74b12bbd96b2af94ed7b8bba54364f4911d2cb9ccdcb6e78217e793. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USWD12219249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda32389959f38bf7075f08515142baf373a25e7f1e18dd116f23886058ccd609. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USWD12219250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d05c37e65fc361577205a0f1a93428a472863dd8cc8969968b9fa5af0fd8aa. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USWD12219251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b066ea0b9bce78c86aac4c90d47b409136d86fea87b1e6ebc74968884ecf98. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USWD12219252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40a4071dac6b8ffbaab5fa32d277712db8ca27ea83723bb2505871442f42469. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USWD12219253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3118960f324879cbbd819140dab407478d3b5b050317cf7434f762ffca7491. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:34:00Z), 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/USWD12219254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bea7ac1ae48f626297589f2366bb886ffbc5d767d3898cdafff6e0af48b500. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USWD12219255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bf019b0b9671690fec244a8fda20af901f9ad57ba5591875f79906f2c98d3b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USWD12219256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865d33182e7b13d57a86ca58f728773c948873869a6ae937e28456d857b53e6e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:10:02Z), 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/USWD12219257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730fd1892642ce5aaea5d294a287b67bb78c3ff9a24c88217406ff28b5476bbe. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USWD12219258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4af18508c60fdef91e6313ac829483356fa88f899be2b623e24eb8872607d99. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USWD12219259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1cc24d88a98508abc3d40888f7c0a5329d283ed47a9a450e0910df80890736. 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/USWD12219260.