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 0xc55073f8497db4379970e005e2e67cf04ded1e179db71421ad253f783f371eca. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e59d8f0b-668b-4955-976b-559824de3ec3.json and https://artists.proofprofile.net/proofs/artist/e59d8f0b-668b-4955-976b-559824de3ec3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ave maris stella: VII. Vitam praesta puram
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 0x1e18338fb43cf4a7f99a3ced4a9e7f0f132d51559d3801529a2926dcec4b3505. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MX2831000360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b890e5d3485c66afb4475795f2d521f6c277941a90ca7eb0c81679565f8e5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MX2831000362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014ed278b9d8b0cfdf808e179486b29514bc411fb13d538f364de0134875b4c5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MX2831000367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf92ac662ca1b2569f46bc2f113958da0835d4d7944551a2a894a44c6bcf3313. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MX2831000376.
Dulcissima Maria: II. Audi nos, Sanctissima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60323a11604725a31a4888a4e6fb2d21a5d0c37b3c0d0b72e69ca1d8c570ae6f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/MX2831000353.
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
Ave maris stella: II. Sumens ilud ave prima pars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab1b44f783fe70498182bb56d2698e52dff6e4b1b42fae9ef39fb074834f9a5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/MX2831000355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ba56d518727bc010b412acc84d4b8188253b7b061ec509aa2ffcc8ea2fe28f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/MX2831000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d83b269ef676e75b476406045dc8c61da28a746538a86fa99c8d96212cd8e0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/MX2831000352.
Ave maris stella: V. Monstra te esse matrem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1350d496f7b48fe7709b13cbded2ddf495bc144dbcb282ee7d8ced620255bf. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/MX2831000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800228a7600db54b12936a62d646cf75fd571023f68671a1b09b81a2cfae67e6. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/MX2831000363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ee1ed476af867aab99687c267a24e43d0afee2cdb0619cd248f8541d8352fa. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/MX2831000364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1250a064c2b689b05e4ad8fa2e5df50e306bf52efd3ebef6906ca4925aeec3. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/MX2831000365.
Vexilla regis: IV. Arbor decora et fulgida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b016edf862478e4da42c21c777229588ae6f0c6025048d07e310cd68daf1c9f. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/MX2831000366.
Vexilla regis: VII. Te summa, Deus. Amen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e6cf0c30616a7c99a7efc1cfd9d14aaead43a478d66e3148b29d871712bb5f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/MX2831000369.
Clamabat autem mulier: I. Clamabat autem mulier chananea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7186d4efe3d1601d00215ac0d478ee1ca2ce8bfd33bc34eb7acd6b3e071eb316. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/MX2831000370.
Clamabat autem mulier: II. At illa venit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2958db86fabed1a10923bdc7768a493aefb20f460827fa0dd642fcd95ac9e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/MX2831000371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21f248aeaec376773e9e1e49fae823c5c34073546c1721a6b02e4fe72624470. 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/MX2831000384.