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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9b2203f1d66ef23bd91cce30301b7d40e6e7df2729922493361a0fdf312769. 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/f17731e2-5d5a-44b5-b34e-92fd00d794e6.json and https://artists.proofprofile.net/proofs/artist/f17731e2-5d5a-44b5-b34e-92fd00d794e6.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3b23ebbacb28ee7ba41cc6a48423a8ba6d901b5303be14f2a6ce96cdb85e39. 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/SEYOK0965008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b52f73efd11204df152c08e44260b09f938b7e29c72c752ab226840b373fd9c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK0965013.
Varför svälter folk (när mat e så gott?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdad78905c32d90bd012f1fb882005212a3cd24f05daae2e95cdbdf62f483eb. 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/SEYOK0965404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ca3d620a2284a3546a1fd1ddcfaeecd1b6002b8f42a44d3eed1a0647644f4d. 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/SEYOK0965407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c94d64e57000a1a9554d7bd56eac300e8831e70372324c392bc6b23a94c31d5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SEYOK0965419.
Sånger att knarka till/Förlåt att skivsläppet gick åt helvete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dd8592e2eeaffbc3a9afee8721bb341dfdf45402e0dd28dba2f83a79bdea70. 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/SEYOK0965206.
Varför Svälter Folk (när mat e så gott?)
Sånger att Knarka Till/Förlåt att Skivsläppet...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e81589f66bc9556092e4335a2fa0bc38e35c1cdef65f7492e1c6e7079d9029. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/SEYOK1853021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebc4fcf4c95caeda8985971e827eae1dba7a46cf4d6eafcc0452c5a8a88f24a. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/SEYOK1853025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf937cee5c03ba6037920b7ed99a719024157176147e2d82411de48e4b0c8ac1e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:06:43Z), 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/SEYOK1853026.
Svenskarnas vilda sexliv på Kanarieöarna LP
Svenskarnas vilda sexliv på Kanarieöarna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0752aeede1171b2531b26233b6fcc1f390c2d0e6fa3e551157346fd76d788b41. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK1929333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c726764e7aec753624cb6d5c5fe59afb790390f7a9f4711cc893f06de26288. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/SEYOK1929338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa25899071637a7f2fd7fc45961df03e4373f7ef192510f71b0947043c48fd5. 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/SEYOK1929355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37256bf9320895467986968edaeef59916fea96c29e065b16086fcc082addb0a. 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/QZHN71972731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713da949346a166a7307cd1baecefae29fb558ac2fae19c072d98062a75c8625. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:21:38Z), 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/QZHN71972740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81d30fa77d29e9c287411689a9430ad137bc26d1004c8b696a3e5aabe48a7fc. 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/QZMEP2046477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4987bb3ab49773941865b4595d76772cf56a2c4dccedf2394a673fdec7ba925. 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/QZNWS2120338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d40a3c5768082ab771b1520673f7b918cfc00f26ce77fde7bf892c95629434. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN72247723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fea9f2560cf7438660c340a0b883cf4656cbcbe3d00fe2ed4e76c09bbc0805f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHN72247728.
Dissar Israel och Palestinakonflikten (EJ den nya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103aa1355256034eeaf2916eb40df4fe25b7700b1e4c2e106d11c6ed74bda9be. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZK6F2408655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff41203013974affbbc3eb932359fc6080f438a06add0ac5ad100d05b0e069cd. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:41:12Z), 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/QZTBD2455275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6d1ef9b90fb22da3561e11430692b60c253e2047761303be68ade67f29cc7a. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:52:35Z), 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/QZTBD2455283.