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 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 0xb06ed22a759a76528217c3f0aca0caa5861672d933649464a35dd4a9cbb22b7e. 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/2c997d23-3776-443a-a258-db70f72ab128.json and https://artists.proofprofile.net/proofs/artist/2c997d23-3776-443a-a258-db70f72ab128.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 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 0x354424d14f2805f55eea9be99117f0e2276fa83b22e1de536898169502027e98. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMANG2232941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cebe95d4a0dde4f7303e92125023f2beddb3a49fd401aa465291ca731ca8e0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMANG2240758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf7610e6a64fba5e22a1e4dd4ce00b2f13519c608efb5dab9387649796bf58d. 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/QMANG2240770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cc99612c282fc5226bccf171bf07228a2bb672d1e2a615038c90497e73892c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QMANG2249864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ded25c4abf5a43a22ad789f811e5f7399f4f22e10b6bc2b6c2abc68ed98c774. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMANG2249882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44226bfb68a04023cf2608266feb96cb353dddab1cd7afb318d0e2d20d7e285b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USANG2486491.
I Serve The Base (Guitar Remix) - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66fb01bf235eb68737e023d1c7259d42e6d6d5b23f5486c0e215ef9c2da426b. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/US3DF2400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d00190dbcb90333bc6cce781070d3fd4d7b7f3974e6620d2bbc54dd2ae467e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US3DF2405760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec29061a1accede22f83f9df55b2086b7c3fec35b158736e9cd0af146c9b07. 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/US3DF2405758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee67a0d51f4a3f36580f238ae2ff48b4c4cdb20e98ef1c9aa47381d59ddfeb67. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/US3DF2405759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bcbce873387bf203d1c3cb7aa6e7949307e8bd419f817a437752dfe7826941. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/US3DF2421617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42729d206e0fc5ab635c0ec019f2c1cfa49ae545b6d9f5428efc6e097b48a809. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/US3DF2421616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b0202565e643d4d68439ae550f900f870a0ef0b3770a7504fe174b61008fc4. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/US3DF2423686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc9f46f0836f1f7f38c40a8135a4032a57bb899005a111c3bf4a80af3564f94. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/US3DF2434906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad2f3288dda025d24425bea978ed26b43131e41d8b8acf6008f7c173a510afb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US3DF2434905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd5e412cd5c74a28f9c156bb65d2adc85e3dec46ccafa19649eebb622916133. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US3DF2434932.
If Looks Could Kill (Guitar Remix) - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6180263a1a7b6d871b5eb126c599bce2ae489469376426dfcb3e69b0b10ecd6e. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/US3DF2434931.