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 0xcd7f7eaf8082280f28bded4211c2a4130ef1b3e45d43519675aa1ce06574a56d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e0bdbbf-6a51-4a4a-865c-aca967a9f54d.json and https://artists.proofprofile.net/proofs/artist/8e0bdbbf-6a51-4a4a-865c-aca967a9f54d.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 0x2f9518aa3466baf994fcc9dbcad620b88e25f57eb2eb79d316d6d7d49cb98c53. 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/QM6MZ2089480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ec9014f422bc46ef25d050a1451381f268b3fb210e28790e279752607a5ec4. 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/QM24S2400985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e653a405cab774e79549255e83b91dcf0f6ab282b789d40559ada7740087768. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM24S2307206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0018fe1d3d3e72680b3abe40a5f43212c87f74d11c2081f337a0127e939c25ce. 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/QZQAY2167244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdcc960a2c842e5246a992072211b59020e159c80524312fa4f62285270a380. 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/QZS7J2140776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fff717f03afc0b812e6dc263a3d64d072766491df95c2ca4427ae19b9308de. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZ9452200162.
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 0x3c22ece0893d1945a33bad9c57bf33db8b2bb7e3806624b629ad1b918c768e66. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ9452200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9b5a2b99538350d0ab98f6acdd8b644b816196557a8bf2079d4b4c69899469. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZ9452200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dca7d48e8937aee052554609c56892e69704ddffeb3b364de5c0defe059f7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TX2135579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40b50f1663091672a50ef9c85c3668c86bb4549022b961386343b7997e251ef. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TW2128893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73e7d6f98e4e5d6ecb07d802cb44b14a6486b69c33de2472c5bdf086346a1b7. 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/QMBZ92015980.
I don't wanna talk about me (R3HAB Remix)
I don't wanna talk about me - R3HAB Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0569a07dc5d099221468a9ae1eafa62d453119a5e4f4870e3851178b56650d41. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7282067898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c6ba14af2dd669e7194d1f482fb7118638769f45ac42b9dfdd312eb5bd77df. 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/QM6N22081622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf24cbcbcc85d54ef5581f530b2f9ef924a453d562d938a50e1a6c59b875f811. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TW2010427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8253fd77ecdf821251c1c139641e739165e1896912233f419d791ad2ada981a1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMBZ91902510.
Ready or Not (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcec8a0a8efed1ea049af7c75a18c174e4b8f176c8af96aea0b6f5a34eae4494. 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/USFM91900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc750a2a7b9cbc555e9b3654ba5275f888763efed6fa454adac0f8b3b39a7b15. 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/USFM91900450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0905b60152dbb28d3bd3788762982fef2bda1b171ddf632803471c630b56ce6d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USFM91900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb949d8d11fb50f720097c416b947af88f1bff8d3f8417b0328088479e21373a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USFM91900453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d631c1b859bfb9da4fd855c786941ec3663ddf25ca8e7de1401b3e6cd358cc1. 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/USFM91900459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e1792fcf005423cff800252466a469463353631bc01034ec8b72551ee67b9. 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/USFM91900460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa664271ec539b9944107e5bfbebab2ae22662e45abd8e0d419827c140c6a5c3e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USFM91900461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3022f23454236dc7aef75111fd8fa2996915dda9cfdcb34d1d1f773deaf294a6. 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/USFM91900465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f830768e15c40e55f5931c5375d2675eef1bb40d7e2432c830450123525dc7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USFM91900467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34ff5b52d730c87267ab2bd50f5d44ad119757a9a154100cb477ec47ec6547d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USFM91900468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20b976af6bfa01fa8c6e0190310ac917bbb27ff026b827b5f756fcd29a111b5. 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/GBUM70900924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183a645ba56e773488be41253198adce79ae8580ae39e2c66b8fc9d16f4f4052. 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/USUG12101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3073f4d9ccd290a01a535d3898e1e968f5b2bb8d0edd007b92446c571517c27d. 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/USRH10721057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d152c5e91ff435be0afcd2fd9cd59004e4e999c820b69eb9532c10b2baf3c4. 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/USUM70503877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7170702d534f205aea5b77089256c30ef6a1f062ed0e55518ac98faec433a5. 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/USUM71104998.
Black Sheep - Brie Larson Vocal Version / Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2f9240ef067fb5c75e649ea8f2ff1bedd3247b8b614e439398d5b5918a1362. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA172092020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c9281ce3d2dfca53d4f12e4c9112c0b1a63c1e498b38ab52a7a76a7138dfe5. 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/USGF19963105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2769e2b9a21d0c0aff5ab5d192d24be2b6d59eddb68dfa219ac5daf3fdb06bcf. 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/US4HB2000244.
Still Alive - From the Original Motion Picture Scream VI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c3ede1b6cbd71eca306b943fdb80d8cb6f3f3686c5b70a67904836756e73a4. 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/USUG12301179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df44d7019f10508f74ad8997d03a8790107761fab9678fef8d3930bec2000e5. 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/SEAYD8001090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eff47bc26a36195b684afe3004fa43c093c5d3b13cbd9ee97e147504999bbc4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHR11838865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9f59fe86adeccfc02f3dafe805ed071e5cc71637708464142c56fc0ef33546. 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/USUG12101243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df6f02626b0b052291ee2b0483f8471a9bc51d85fd8d8ce6f6e1fae799b22ea. 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/SEBKB9802010.