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 0x97621d4dc44b7130aa4edacb601d554093ad191d55cdf221e88c2d8010e52d60. 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/7f6eea18-918f-4958-ae84-cb8b9e7f0f44.json and https://artists.proofprofile.net/proofs/artist/7f6eea18-918f-4958-ae84-cb8b9e7f0f44.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 0x5e611ecb6d7a6a34e9d71cbef51d115db2b8d6d23042694f34f3ba42c215de54. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:42:33Z), 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/QM4DW1729684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40490eb9692c08e363fb5525b85e3e331ac4d78155defc256e0ace0ad5aa86. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:10Z), 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/QM4DW1729686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6de1b3219a1d86a7a9b23fc9c3d91e7ebac79f7abf6ee896c03fda3a4ca0bc. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM4DW1729691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5c73aa2743615012f1ac432ae999ed27c9648df1196d2419bd3ac665092c1e. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/QM4DW1729693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e2ed4f07324e08fa3eb150935ebaa13dd8c6bef5b0898b53e174ffa78b8c2c. 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/QZARB1810441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35673be4e5a506e5323efdfbeeb815c8ac810925c45ca7f156ddd3ce9a93ed4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZARB1810442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e174f3c47ddc985932bf788d2bf42e169874da16fb5f6ec6e90792072e05da6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:40Z), 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/QZARB1810443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1d67be682833638859578e2bf83270f7cf981e2dc657d88030200fc4982a82. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/QZARB1810445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bb30a77c36942025a23e598bcd40641dc2fc455b6786525df4d233b8c1f829. 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/QZARB1810449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04df581d5a57e610ec197df2749d9ed12b0364e99a5ec20a948176514ffe88f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZ4JJ1785929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70875c2ecda3ec441992640984cc04b659fc6344979be7e4da1e7fbc9cc4240b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:44Z), 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/QZNWR2092597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d8efa30d3e7c8a8239133024a1958734fa35c0c86752b01e366a0e62b39139. 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/QZNWR2092599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5f8be22c25016021c334e61a726a698d44fd372c9b8d587cabf70d0e1a424. 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/QZNWR2092602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a2ff54a84d64ebea7fb2c4759bfb914e679a8dde90113bfa9e15a79f4b917d. 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/QZES62217317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6ae1ab951a09944e425361556c4536bc9a1bcd920dd707bcd183f7d497f33. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZPLS2218495.
The Cost Of Living Split W/ DEAD REJECTS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f2c445d719e274672e9191ba603b994a9112433630d63052aa81fe1eb2691b. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/US7VG2244223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2170e2f3d28f20c1f1c49536b129510b75924452542f26922e3c4f2145cd4394. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/CAI371721334.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab86d5079d704ade504b12470199c8ce64109f230dd098a43c82905c807db5a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWU2263728.