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 0xb5efa70f7955503e15395e7d1d0bb536102a3e83dce0a7a05176dcf50d078a1d. 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/25d92c46-19d0-42c4-9685-198082861bf1.json and https://artists.proofprofile.net/proofs/artist/25d92c46-19d0-42c4-9685-198082861bf1.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 0x84c4051507f17a19394100c8e087aacfb81b1969fe0fd4327355c5c85f5294fd. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USCGJ1434308.
New Beginning (Icelandic Elephants Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305cab13370e9f5e97418885e37df0e719586d9d9990683ed646a2798382aa1b. 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/USL4Q1746835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cf3af31a1a9bb089e7de144520cfd4b1a9f2ca7bf74eb254790ae06a6b8b04. 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/USL4Q1746838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd73864ae2b34233ebaa3401340ffd6a03b65f65f95009aaea029a8fb2704a8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USL4Q1746841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bfed893850bf66f38931e5d9640a9a87560186d6edc2e1bbf60b0c8ce1d0c6. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:21:38Z), 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/USL4Q1746847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda9186cf4f4393fe31242d178f7cdf9c830bd6255ec88a01c96d7ca1071f1c7. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USL4Q1746848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdbb476fe8be39ee5d453d40d1a0c641454e98bcb26031a523e9653888cd4fd. 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/USL4Q1746849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173270ffb2feb134116e54ce903a91976aa97bb06e81df0816cd9e402d6849fb. 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/USL4Q1746836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90934875b5e0d7fd2ed540aa464661686ddb50521692dfe10dbe3b2f85283c3. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/USL4Q1746839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c57a0a547bf5e372d4ee56ffc96162e5c2df99414caffe74bfcdbacc3b8529. 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/USL4Q1746840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eedd049e96598a15cadfca798e8a661c4e0bf47b83756b8c81d103304244df. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4Q2084498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1c5fa916605d42355c66c2ae51c4807bd363fa02e185a9fd83defb96ee239c. 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/USDY42120993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf324713dfda4fbcfeadcbe8f2776f2cefff2d1a59a6ab7ddef0208e741b76d6b. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:42Z), 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/DGA092347513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689115348280066c1d2e1900fb2d0be08419e5df2f7a1ec79eeaadf72cc145f5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:41:34Z), 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/DGA092347525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8745a352b187604529b9d7150ec922286ffe6d15590b933f8a9184a2ede250. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:59:53Z), 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/FR10S2499651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d92259047a5b9ac6f3517630e5af76ecadc9b4103cbfa506bf6412769f8965e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR2X42456885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c485c132566181e5416fcd563bb53df2ae3265ae8909eb2a41b34459d22652a. 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/FRX452483051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b063e8025b6dca27e38c128a3f6330729c322b874f71a1862564bbcdd36d10. 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/FRX452483066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a65d326daad627cb7cc4ae48eddad23c3ceef37de6c2c368a50c1110e3f734. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:06:35Z), 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/FR59R2505339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c713f7205aca20e7cdbf5e5db7f7db1eae08c24daf1f04bca67be961e0087d. 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/RUAGT2500330.