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 0x332a3e21b42d4803ef9655cc0201cafdffdde3d8c978536d9863abc60e2dda51. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4260359-d3c6-4422-bdd8-90050a992003.json and https://artists.proofprofile.net/proofs/artist/d4260359-d3c6-4422-bdd8-90050a992003.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 0x7c576a08141171bfaaa84e2256bac6e5913bfd55c3374fbe3753412ae85e9650. 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/BEB472100015.
A Story of Love, Life and Freedom: Journey 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0d93a3d23a7d8a9719b5f23d1b2fa672b2be7ba8c9b406c54d676adc24ddba. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAJB2421021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa192cf3a50959c88e71928f7260263999a5fad45315751491898fada977fc532. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/TCAJC2421048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e5349a2426357266f51cbe70b28b038f50a4cf3ce8794e2cbf10b1fc5cf007. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAJB2421064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f40a3263cad717fb2e241a324a93048c79a0e03322f211fc97fe2330d9c0857. 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/TCAJC2421086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcd92079a668a13fe119cc4695d1a9ceb0fb5d008f0348af6c353938c998317. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAJB2421111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7851a482e2a4df2c210414cab81708b49435693cecfee02071afce2031073335. 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/TCAFZ2101303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed3088eb27921ba0bb95a3769bfde6b9e396cd9c75e303577ce8428634079a4. 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/TCAFZ2101305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a21374f1c64068c2fda1358c464ee9ac96667d3880a3df81e0b78807c00f31f. 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/TCAFZ2101308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb877ab529c9ab3ff9ec38e8c000536d20f00c2db6a77fd4470c6c4029ea2c36e. 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/TCAFZ2101309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d2da307f398624996f841d3c49de03269cf37608bd883a614192de664eacbf. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BE9HW2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da591e8f3fa51e5af7ce830248e9dc0c0e3d74285a096b6a3fd8c4d50d922f7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:29Z), 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/TCAGE2232740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe018f3dcd80235f92c75d47606a8812290a76a17cd54763865c62eb60dc2842. 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/USL4Q2266960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826aedba873ea5c80fd4783906249c17f6fdcd653df3770e9bba29a8fa12ac35. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USL4R2206099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af580a02d25f064810a5c86d35a41c0e07e3d874289629785038f813c7653c1. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:03:24Z), 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/USL4R2206100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9244c192cedcca914d004cc41463b160f18574540bdbf5500546a358ba6b99f6. 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/USL4R2206101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa95787add847ccb5c660f25582a8bffbe19e89c2e92d5a18c2b7b3037b3e377. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USL4R2206102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13733e870f30cb609434877ec9912ab08e320deee0648c4f2f1043cd77e695cb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:02Z), 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/USL4R2206103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8638a5453b743336c1bd8cdf1a42bf3087c56f39b37d07f695e876e9d9da9bef. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USL4R2206105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420d97cbcb57a46002cedd2770ccb65a0a40c3aabcff66c90e52d5079c9ae9f4. 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/USL4R2206106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1bcba76bf28532ffda3e9bf7436b6ec2880e0fa35ea28c9881acb754a3c81c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/USL4R2206107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c74ad0995052c740e42d1233451419e1dba3663485199b064a92dcf6b7ad9c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM7282474869.