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 0x997ae1f74244adec39d556499b2636f6663fc8e71a7e2b650ab3a7f01f25fa4f. 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/03edda4d-d97d-4697-a876-94dd53d65b5a.json and https://artists.proofprofile.net/proofs/artist/03edda4d-d97d-4697-a876-94dd53d65b5a.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 0x2040731a7ecd5d34b1c03a5443777c71714dbff92e83ef60f09bda4d89c776a1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:52Z), 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/GBLAZ1801197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c6713f76d6d902fbfbdc3c1867b4804973b618eba37fa82b83e4870243604c. 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/DEEH61702430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c0ce5868e975a2b0d703eda9290f0f9192e525a699bf590e906539d5f01f3c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBLAZ1801193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018812c046936779683585d9250591f72d5f61e3b8381f6a06e2880fe424ce1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:51Z), 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/GBLAZ1801127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14670881da314dc365b56cc93233480d446077f17059a53a8d996622340666c3. 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/DEEH61702431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487a02f39ef966946f9f22e19c3744719dcfe2b753a43df388c42b853c1537ce. 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/GBLAZ1801194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2c7b0fc944e4fcd2c1cab08bb051b3f8a7f7ba1a008927e8bcc47fc22f505e. 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/GBLAZ1801128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ccad4ed14fdd98e6caa20e005c6eee266977a1cdb8f5f01e96c37e98d8d30d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:20:18Z), 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/GBLAZ1901254.
sammlung 1 / pause an der kurve in vektoria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4684215336f11504da9d59326ad536fbb9bd6d9ecb3f541ef56870974291cd. 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/GBLAZ2201622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67279de06b42de399a712e7a225ab39dcf3473e49110ba7317a3957e92a45ae. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBLAZ2201625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94872c1e0f251e3294be6e43182c4660f33af303467fe72ba8fe983ca71204c. 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/GBLAZ2201626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa611fd9073070ea310ef49db4957d7cce01f3b60f7a8cb49519ca09b6dd30352. 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/GBLAZ2201627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2af85e85dcd408f35b1515bb247182510cbe8a55086f44e51ce12f159e6658. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBLAZ2201629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f315bd3a55a57f23db35bc2e14ee40108829db60c19c9466c91e06f97e0e5f. 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/DEXN92549300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee88b5e7361e523402779488409b5a0d7ed83dfaa804ea46b1e51bf8cf5267. 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/DEXN92549301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aa4ad7413b45bc48e8a3109668252353c0c3faff447955373edbce03d642c0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEXN82589637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf90c05fe00b9190018b209e914c24f2aaadbf6bee731dec878f16f863f95027. 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/DEUD92591433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd321da69b1da418d28dead00207562591507285e8dbc6a3f10f24d9d76a261. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEXN82559296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494232e6d9b771c1c8d6042fc4c3f6e6f969e0ee5f99a84d57fb633433ea487a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEGQ11900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e11cf9ee4edd29539f480add49c5079045b6db984482ea23f0bbcc2d621007. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEXO42431917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073d600a0883adfb3c4914f30afb154e695139fdb762019f2b5cdde0ee36e602. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEXO42432115.