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 0x95a39529ce6324f2e2b3eb06c00253278d29b8928e4329d637277f139c8db854. 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/76f17e2f-44ff-4f7c-ba13-951c56e836f3.json and https://artists.proofprofile.net/proofs/artist/76f17e2f-44ff-4f7c-ba13-951c56e836f3.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 0xd8650135ea0cc568f16c2474dee21de9ed7b03c3f5f9a15305051ad12cdd5ded. 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/NLH3Q2100991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a7acc68d88b1fdf8d90c9336edb8a86f2cc05625054eead8aa4e20eebf9e69. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLH2L1900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edc34837282ad5908095e0bc4123ef95b1ca0e002b44686b1862428eff8cec5. 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/NLH3Q2100875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1095274bb01dce0f2af88944c04c6ae738bf698feb5fa2bc2d255e907b1f6e34. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLH3Q1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1656b4dab382cad2be93fee92c3b934c89ca3683eea8ec28359d95a2cc1e304. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLH3Q1900255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fc8711b5fce69e02e0af5d07433e62ccba795141c5d0ffd81f336b3896da06. 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/NLF711811333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1095274bb01dce0f2af88944c04c6ae738bf698feb5fa2bc2d255e907b1f6e34. 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/NLH3Q1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942a6389b4940cdcf33790a1e18d96de5ad7912fb0ed82c3d6f3f7b7d124262c. 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/NLH3Q1500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c05a103e354ef3aa1b9f94dd00ce0e68c75159f80643531a0ecd44726d814b. 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/NLH3Q1500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7e1b445ebffe55965d468d2f57b64b971355629836f187562e02cc1a7c79d2. 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/NLH3Q1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21679c96bd463328b504138845ac31c78db631fb443eeba4f912844a0e187d17. 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/NLH3Q1500060.
Noise (Hard Bass 2015 Team Yellow OST) - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd02cdee8dfdea76668bf605e3892f2728ac8d6eacf02603ba08d7ab853237f. 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/NLE801500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4afc01a2548742413f2482bb9416e5ecbbf8237b190cdb63e5fc17fafe040da. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/NLH2L1600179.
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 0x069331e01ffe3b34ecf0d9c433b155bef39dc0295c88b284e4078a0b88085360. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLS762300364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5eb7d7d1b96e3b520ac05611ef0024615d2986f2aa00dc692faeae09ef0f7a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLH3Q1500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71895b6a75ad8ab5910a7882cb1cb1dc237710feefefe15f56dc1dd6216af10. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLC201200042.