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 0xa93ecea5113a3e582b49aa9f4dffb609ad23572cf0ac2865e08f9c816ec6031a. 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/53218c2b-a3f9-4442-8dcb-99284fb39391.json and https://artists.proofprofile.net/proofs/artist/53218c2b-a3f9-4442-8dcb-99284fb39391.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 0x3d7329d8fe269cb78dfe1bf9d5c9355026a9945a724788c1fcacf2a9c6ba7683. 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/QZNWW2005442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0270a847549fbf893613f7af4f136e2f458df3849a757637b24a87c362e1bfb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZPLS2020915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa9233fa79b62f4cecc733f09bd06d6ac25ccf22967f469c0b3cb52f7a5ffb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYX2147371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7329d8fe269cb78dfe1bf9d5c9355026a9945a724788c1fcacf2a9c6ba7683. 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/QZNWW2005442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2250e99781ed02a79b95e48a5e5ac9d814c414c94c8079a7916d2ed59caf2b2e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWV2043192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491f7c95336223f9584c0f8aa996795e5caeb4739da1e416609d0217bc9d0732. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFYX2147372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa385eee1861e4b5006d75c27b98f0d008eca70008f1b4544bf651c5632ab798b. 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/NL1LE2102357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2d3a66afbe1efc246ed7039464baa60c7c9f1c8c8f9863128674affcd981bd. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NL1LE2102358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff3ae0d2f67654cd6386425d8c539a33d885bb77416af51f561e5aca6ddd55c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NL1LE2102361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5320795c12096eb71f3a09ae2a51799962dc3a7c80a8bd4581f53be84ad4fff. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:25Z), 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/NL1LE2102363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93235cc2a8c0f82a12cfa16af6cb459c89538600713741b3e6f1aa7cd253d848. 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/NL1LE2102365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4b0e0eb40bc2f651b7403f975b4d258256d7fbb90a6b8cc0bc2e63c1c9c7a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/NL1LE2102366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050f78f7962196ba3c1d61ddde088d88156bbdc61a5c655bb81c91fc9ea21684. 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/CAN112201262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e29e6c3a9f02ac0028e827eb11941189c6ba9578eb69df07bd0af1af6aa96f. 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/CAN112301577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630f2110801e85fb1be020fb9f9d614500dc9f55744d37023c0ebfa5bfff2db6. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/CAN112301606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843188a267af4744db0eb005bbe3be1d3c745dde6a8dbe63d8f76b0c912c6d4d. 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/CAN112301671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd28f80a1387f83832ee8da565859cde33a35700e5668428a05048ff0097b04. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAN112301687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8d40c3e5c8ab832da01eeee3c70798f77e5ed95017a62b08d70da029e9367d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/CAN112301809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e29e6c3a9f02ac0028e827eb11941189c6ba9578eb69df07bd0af1af6aa96f. 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/CAN112301577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac18a6f7ae05606b935809cd15040790adc58c19e2ba0c2d473bebee9e5b98ff. 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/CAN112301807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dc6248e080ab27605bd707398a825a8be854ecd4aca4cf34d50b5680421e13. 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/CAN112301735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9807c5019172b96610e99c1fc17cdfbf383379081f5f85a8e281decb7c07bd13. 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/CAN112301806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5746969ad3938f2016da61b53757b4f16fa137754a7ed68e445c4f3f15dcba. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAN112400822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca42145b51468aefb80374eaba5234ffd8e677f01fab1207d1af31d569ced3b. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/CAN112401042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdadaff1bebc4fcac493b94445f01793523415e3ccea070479f7aeaca13b9ed. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/CAN112401680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c25ca5b91b7093709d1259c506b25b388595236e9a3bfab4a6e83cbf482e480. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAN112401837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb41040aae0311e6ee59c9cd08576b51c015ad0e431c1c66b8a6032c571395f. 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/CAN112402120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efec03fd6af25232b4b537d10102b1636ad77e017faac11123ba9c2a6a3cce3. 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/CAN112402123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e9785b8e8f4e183c0a30e07d2c5b707e20d0d5f80d04c497d6b80b2fe20bf1. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/CAN112402124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1d9d18c3a59d46d1d8fa220aeea29fd6f68fb30578a383081d7cd69862c82d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CAN112402125.
i think i just changed everything forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3ac7fb94dc36ad888ebcf27d399c8dd9cdf0fe18eb60b792fd297314062c02. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAN112402127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba2a3265567377f4ea133e587e124b6dad771261091c57ca723a371cf10e672. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA62502139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7600e9207418d840ab68ff1d9e9cf4b4971339e24a0233cfc924073e6a12094. 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/QZDA62502142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2b88189771af18cbdd9e51c72fb0302ac8ebf8104c47fc30d608a5704d9be1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7X2557071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b60878b864d6fb59035e949467e424bd78e873347071843321a8a9302c4224. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2106212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce804d9302e63e6a035a8960e3a0935934eca565193170ef6ac2472b15cfdd8. 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/NL1LE2102279.