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 0xf27ed705b029d8750245aa8aaa9d772066d7de7833fd57c2bfa7086c12a8b2e9. 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/c6e12178-d0c4-4e35-b19f-608e8b2e191d.json and https://artists.proofprofile.net/proofs/artist/c6e12178-d0c4-4e35-b19f-608e8b2e191d.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 0x3165c7432b34ea9b2311465ea49930b767c9331363e1f38edcfcf441644b9f0e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US28M9710309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40f954d838557f86e110ad72939f33329afed32d4777d9c28615aa054f96776. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US28M9710310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90c8863384141f14018c27a50980003b4e53269b612f264d9c2ac3f4f0774d0. 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/US28M9710311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6babd2b9260cf108a1e8f83e1fefe11d5367d8fd1c392ae64965df24194d50. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/US28M9710312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bff580a1be44701fb76836b40b1b52ed18b8ba3d0f59d059275700d7edbf044. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US28M0410234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d54894f6bee71023c0426c1a77f1f992740cb94d804cbf486bc8d8c713db1aa. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/US28M0410236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5245a6d04b75bf1db7caa2444bb3741f66ec3cba5a6b38f3957e8c6b1eb28bd8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US28M0410238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27fea35f8914ccadc0525a22d3b71c2b4b6ccf0d850d993f23c40dac42fc358. 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/US28M0410241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8982782dbb597d20d677af8db70f55b352515a134a7cd5377699435c84d4d2dc. 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/US28M0410044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fd81322c4ac5d405cb6d40035400397f31258e7096d950d93119423fef9e94. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US28M0410050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a8064e21ecac09650e9511c43096d63e5ecc820faf7130d524d3cc8c40a3b0. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:24:51Z), 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/US28M0410051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ac4dffad529fc23c125ea5b84a3817df032f8bee9a2e889da88a4d2dd0ac2c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/US28M0410053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c601d7ea3088ce91baa0ed653d31b1b71daaa0971cb7d78a17fc204aeab8b8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:21Z), 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/US28M0410054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8d662adcb07d820a3f88791d7363c9e4864c01a877f7e6a9f4c15e35b5bc09. 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/US28M0410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a891071b0bc35386ffe71b192c7e16248a7be614e4d2c157ee51fb68ba2fb0. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:23:26Z), 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/US28M0410057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef9250d04ac6f0c51d426e375568ae962483a397abe599ef0a957f473a659be. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US28M0410058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6fae28bfaacb49a19e1f13b4efce03bd2199aeec90335e7f25964a28447d72. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/US28M0410059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeeebd3bac85c532afeece7999ce180e4b95b3dc2c652db430cef6350f73a1a4. 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/US28M0410322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87acfb27bbe787780fc14b4b694f3d8251a519e7d27bf7bc7bfac6c8b033465. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US28M0410328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32c1ad647e16f2f4b482bbc58f6a17fc74a4b1c85c5a2a7ffccc3c85eaef1fa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US28M0510424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ec638c98d3d6cd0162e58ceb6dd46fbd28e7c8cb021ef00ea785c89c8bdc61. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:58Z), 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/US28M0510438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bde8cfb13ad352e1f38fdd7c32d580b72ca518d04f837eb6b04155826ea433. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US28M0510439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b836c55b43fb91d9d51a33a6e0bcc6a596b5f7b3673354d9eb95cee3ec0b5f7. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/US28M9910308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0675d924411b089e101af2d965bc4116184b3cdf503fe18cbac2a2279fcd0ee0. 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/US28M9910309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66201eabe0871eb41093751e247420a7fdace81b674f85b69195ee1bf68ba7fb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:20Z), 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/US28M9910311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dc99b27877d3d34d7157f82214461f0831bb5e4f267253092705f3b0b4fac3. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:15Z), 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/US28M9910312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde78d9724cd7aa5421b84d7b1ed9555e8e6341145820c7ab0c85d29471f5f66. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/US28M9910313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67a73724563c6ef87fe32918a05ddc10443be34992bb887109707ac42ba5ee0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:10:14Z), 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/US28M9910318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1368870e87106ddafdb7ef42ad78c75dd8f2be7e8d8766e53df11cf9bda4a9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:22Z), 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/USV351355889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82abe05e14256fbe15551d9ba56ccd0a3d50a5f56dcdd8410c877acb8c15466. 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/USV351355890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835fd4d7e21ec56e60ca5761b0440f56da04646e12f15acdce0f02688b317ccd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:58:35Z), 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/USV351355894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaca67a9c2716046b074936eb322e921ea5dd58f8d9968d1d66082584ebb479d. 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/USV351355899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360aaa17e3d40e09242e373d89ad95bbc695d220cf74b21a72fe597a9b95db5a. 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/USV351355901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8814e14f843af7ee268f087fdd539b6e68cc85a652bc9e90d550fea8de0472. 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/QM7281442593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84e5b0b917b7aee77a9902a4b3f747def2014f8d2c55d6926c7ef32f439d410. 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/SE6I32066035.
The Block Brochure: Welcome To The Soil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e09071f29636aede24ca711f583dcf06fb2e88f3f45f9db00043f449b259925. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:35:55Z), 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/US4KV1200017.