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 0x8af7a029acedbebc0e1e5de6d1618b3a8f7d325011cfbad01af0751dee1a5c59. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/490e1654-8d0f-4670-b8ef-d84fcb137997.json and https://artists.proofprofile.net/proofs/artist/490e1654-8d0f-4670-b8ef-d84fcb137997.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 0x218be30026ad4d058b2934a230db4f3b61f9226ca7ad0fc7de262c43db54993f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/US83Z2129063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7093a8ff2c49f5127fe90dba397abcd2770a6f6becb6e1b502800c599b4ee7d9. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/US83Z2129062.
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 0x2aa661ea8b1ebb1124e2115b552134d8a79537000e3d50b03451161072257ac9. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/US83Z2129064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384cb55f6ab9a286fee40dd17ffc22cc6f7a6364cce31a84bc88ace30af30332. 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/DECY52301921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5dab16e6534e6ff6219c67c3518f65c506463f9fb3ab7098bf3e8237fb553e. 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/DECY52301924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0373e6ec8c3f6652409093c1cb96cdb9f781f87466088a9f9c3e2993fa63a7d9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBWUL2076185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3332c0a82c97444f1479779c0cc6ed1799765a2bcde337d264914d1f924850d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU2320627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6abfe99de016029cf82b24f8a19a6fa2367bc5e039eb83ef877608ce053a74. 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/DEWN71700312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497e080530fe2b0da82692b1e4fbfc3f244f12e9a8ba9532d9f4eecc8a782982. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEWN71700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0441aca885a2387ec9b50d106fac2b884f9b49ca33ce797d664a955026dd08. 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/USA2P1940449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c42cf4c03ea5880c65748454421f0c1831189fda242a8c534846af30184b46. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DECY52201066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717b07e10f2f6077324001c34d4b53d0c41bdead438f4e3776cad8c1d86ed0f. 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/US83Z2302131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a86f2ce6b925cf6adb5f77edaf5df5f95c232a85c66b91bea487927a38044f. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DEWN71700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7a7cb9fc951e324a814579ebb19da2a1af9bdf153dd4f3b1b02558d2e18f78. 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/DEWN71700315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c03548de321baa0c0ad6cdb1df6777f955a6b5f69f66ba1f74fbf15e06eab9. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/MX3742100609.
Muy Divas, Vol. 1 - Curated By Mystery Affair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7db9e68b6f893557fb87763fa582280f3dd23f97b91f830cdf53e26901ffcd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZTRX2341240.