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 0xe477915c0d9b99614524320ab7b0280ae86be20a4ebcb392292202fd88747d99. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed2ceb37-5f52-4336-a1dd-b0821b7eac50.json and https://artists.proofprofile.net/proofs/artist/ed2ceb37-5f52-4336-a1dd-b0821b7eac50.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 0xdfe3d2f7059b314147718d679fabd3ba0802f9672b0342f80a3a5798007ff41e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZFZ62265793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5540634054700525949b33a9e5271daf2fb64e2293ee8b3282b0b102cbd74ad9. 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/QZFZ62265795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fa28aaac21a7a40b66b7299783c4d9a515c070f52266cc3c05f0c11bed3080. 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/QZFZ62265798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460535dcbc69d3eb264ab4a100532fe830357f32b90e45dd33160e24ab1273a8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZNWR2179057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5fbde1e853cadb6608476e73b1fb451919dbda9da1c5cdc5a79cd03d4f3792. 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/QZNWR2179058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4b2d622beed3058ef7f141d723a964a9642ccc04a1811df465fe8f6675e97b. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QZNWR2179059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441ddd52d76a5f5be5dc77c7fba509528243e873ec0dd0c338dd3489f67aeafc. 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/QZNWR2179060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278395644a8738d807a0bba65b68bc7560d1727643f1e55b40674a4c77e5a98b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZNWR2179062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a453a6ef9b3dda460576513f2d9e723d0b589e9bed9f3cd3707cfe433ebb41. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZNWR2179063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6252dc8c01f23bfdb8806aa3283eff7cc8e2902617744b61308296c4100217e1. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZNWR2179064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef102b4fcd41b6411d684a4188f401e57ced981da0a7fa8b9741af36edc1462. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QZNWR2179066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513746b2f7ca3c04c5199142879b6907df79b54481a6f317acdd1003e0874a0b. 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/QZNWR2179068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92628af78f9aaba75603b8a9e58d5ff42787de488f82131493479b4c0b36374. 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/QZNWR2179069.
Popping for 1 Hour Nonstop PopYourSoul Original Music
Full Mixtapee Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7164c21efb747ea8ade5e2b273e2f0aa6b0d68c8c0168cdd8ca30effc9e51686. 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/QZFZ42165196.
Track 01 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078a7467a68aa8bb39da68857dda774c3f33bfa320bb5bd3be2c8bc3c47e1b08. 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/QZFZ42165197.
Track 02 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2b7ffb1495e2e353a7d8260f0fc1329a7a37f802116b96d3171d7982c3f67f. 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/QZFZ42165198.
Track 03 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d7d2c201318bb3d002ea38acc55fd52d8cff8da3e81c1427a1b101cb0cc5c0. 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/QZFZ42165199.
Track 04 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3b2bae552f49ad80524c2b26e5b5fd1438dd2954caa18d4132ab99a9d219cc. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZFZ42165200.
Track 07 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38b255d4d738f093e9cc2e86aea5d2796b02a278b6e68ea865f72b1a7fe0dc7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZFZ42165203.
Track 09 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9fcfccf1c50238a880e1b586a3ae256fd24eb1b95b9c6d7813e07cf07f1da4. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZFZ42165205.
Track 11 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e912bb9906024096026a7d5c7c1ee21aaec0483304ba3651b54b21ce4df292. 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/QZFZ42165207.
Track 17 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952c0ca69b575f8c40af1267d2f30177da5e031c939730bb6e4d62ae5f2756b0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZFZ42165213.
Track 18 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72af2872eb8dc5c692ae9e19f37502f5171efef44c28e782e33f9767e693e0ed. 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/QZFZ42165214.
Track 22 Popping for 1 Hour Nonstop PopYourSoul Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c023f434eec6da73bfc62b1697b1ebf3f73dc845b2ab698199f2a33c78b0027. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZFZ42165218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a8f759c3a2b67d66cc17ad8036c1c0c04883f3b828461753182a632c82e4d6. 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/QZMER2095113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5069daa700d882974117af63a7dc9f13bb1996f873854a4457b8881f0b7b840. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZMER2095114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f393e234b3a1e5192e535cda4f49a795d33e81bf23287534ee27176d15345cc. 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/QZMER2095116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a07e494d17fb9553a2eafd2b60cb4613b2bee5a247f52d143c54c6ad5ee11. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMER2095122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd9a2b29e1079126bb31bf5defb7b81600f0d43af16510194329b1deb6c103b. 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/QZMER2069345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84f9df557deab7f0d42c9955335f25e8c4f4b36ddaaa51fbfcbe488d9709379. 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/QZMER2069346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628a0c6cbd647640bcd2e69b4a0fd3a14c5839c516c5b22c38062751fa629f46. 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/QZHN52061666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf777aa4bca93dc1d6b87d41cb22819d84e927e93b16a7a4397ff7a67a9dd553a. 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/QZHN52061667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c57d686fcd9d96d007a60d98a078eb2dfc8d489e687fa0a7aaf1ea117f4be5. 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/QZHN52061669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b0c0a6b78ffafe6f83ce5db392744aeabe5f0551c8f74e5bf6881cfd421e0b. 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/QZHN52061670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce17f8820c4d9cebc8bb4567abf2d608ea4b7d88c2f7d5ba8fd3e6542a8a0405. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZHN52061673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ffb3e990d029ca381d9cc7ad11b7872c3f867d754a356e3b41f9a35dc08690. 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/QZHN52061676.