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 0xa229e60fac00a021b97a9fd85beb7b9521b7651695ec6ccfb3e6ff5daf341989. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45cd61c-d6df-4961-a404-b7f45abc8ee6.json and https://artists.proofprofile.net/proofs/artist/c45cd61c-d6df-4961-a404-b7f45abc8ee6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das Haus am Rand der Klippen (Ungekürzt)
The Castaways [Die Verschollenen (ungekürzt)]
One of the Girls (Eine von uns lügt, eine von uns betrügt, doch würde eine von uns töten?)
You Let Me In (Roman | Atemberaubende Spannung von der SPIEGEL-Bestsellerautorin)
The Surf House (Du bist im Paradies. Doch das Paradies ist tödlich.)
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 0x25436ae9692b680126bf9796a5fda14133b58598fd4d59cd906db14af573d1c1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEH842501447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aef6d14c9d3cbd125ee2d491be6d92f3fb98300a6413060ca71f38cb58d080. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:19:19Z), 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/DEH842501448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa541e40bbba61dcd0386c075d8773757821f8f5d07f38e03d45ac488280a256e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEH842501450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06cd89abea4a1385b9763778233ae59ef9b55b2b508e5a487a550cfd64b3d57. 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/DEH842501451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5ea5f466b0652fb7f0905af5f4ef350ee48cd150147d5fb33752ee0001a95e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEH842501452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25da8105ec6b4362df0d62a999369bca4a7e825cec512ffea1cd966bf97c678. 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/DEH842501453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e14c2fb1f4ad435c98e984c5675838f9fd10aeda5f340e32f248c25f14167e. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T17:00:46Z), 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/DEH842501454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68804e1743b2bf503b5e069d35da40e4f4928354e33ef85d9ae03b002de7f65a. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:42:42Z), 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/DEH842501455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ff0ca68484cc46a01be51621a99720df48bf1cb083a144e8aa17d530a635f1. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEH842501456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835aba0e4522a4b4891f705f2e4bee1463002968b67798f818b29b3e974dd942. 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/DEH842501457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c67f55abed3e79c54208d414f7f6970d4ed9fb8a6467637a8e7bfb3cca0262. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEH842501459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a63601dcc22f0606b10eb6f78de197d19a79ff03b3ecd08a3dcfbe1b3a33d0c. 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/DEH842501460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5416eae0f1a11460d8abf12122cb0963bd2c62dc4ede40e1e3f07a3761fb8fb1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DEH842501466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b259403efddd28b55eae76a7cb7986d39c4302318455f9062c4c1bbeb87e80. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:35:38Z), 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/DEH842501470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0c4908e012a2adc0aaa45507d6fc91e7b092aa1414896ea0b4a5fcb9795f5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEH842501473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2c2609a4f98944ee96025e16d1fdfb03f7e6a2df8120592253f28c07a9028e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:03:43Z), 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/DEH842501474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9281e4b8eb757f820a7e1abd59f212c00e66431f4b7210cf6119b27a25f399b9. 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/DEH842501475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac6377aa8f078e19568a86f562c6b2be33a5363f10cde0ad9c79646e9b8a7d6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEH842501476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d689bf15ad48869f08727a0dd29f8a835e96f6575f45aa2ca66e90b53aa1382. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEH842501477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34336732ac3d64511c229c950472b12133fab5f7d2658df04d7868640995c250. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:18:31Z), 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/DEH842501478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca00c13b9a4bf006b84926ca9d1e81c765bcb059e09d7b3a432fbf70f6c0f695. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/DEH842501488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471c3c6f7854d5d0ad3890b7e292b4571179a987bcd6cffeed3333fe43f9b6a4. 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/DEH842501489.