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 0x1f90578586d937bf812aebdced5459e1fe26949bfa89ca4258e2a0e866443051. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dfd14dc-cb2d-4019-96ff-7423071dc82c.json and https://artists.proofprofile.net/proofs/artist/0dfd14dc-cb2d-4019-96ff-7423071dc82c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fill in the Breaks: File Under Blood Shot
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 0x5ff6723210de4d8895276c41419a029290ef1c83180e6eccaaa0c3c98968c0de. 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/USGJS0910109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa441a7dfc58e9b6bf100e6a8945148a5027acf06efa5ea7685414d009681f7b. 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/USGJS1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7004ffdd8012f0a27800786e45f51e64098e1f1116806be12c5a4cd5c4e3c7. 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/USGJS1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7144d41a42f4ffc49c762d8f1c7cde4cd32f3db22cfffa03e74c2d3cd14e8c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USGJS1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90d778746e43619918ab6ace2f409ec5964efb47d5704ea595bc270fa08b488. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USGJS1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b275a3997048664d0599b406371d399515ef192646332621699ca38747e8798. 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/USGJS1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55b35d3e326c997ecb67ef7be32679246f2ff87237a6246d87d4e73b5b7fab7. 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/USGJS1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c76f31e1496be71aa7e399ac77b62c8613b29cc7587748b9b247c83ab85a5a. 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/USGJS1200008.
The Future Is Free ft. David Mars & LEIF(Kolt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8353e25306e10f90a6c0ee29fcb08dc290c584ea1d1e5f46ed65e9178145a1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USGJS1200012.
Rockstars Don't Apologize ft. Awol One, Kristoff Krane, & Eyedea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6258dd0061f5fb361778e5cd1ec373a406969cf2f50c1a059c608bb58fda118d. 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/USGJS1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a436c8ee72c9132576248554e78bf6019fd5f6385cd65e873ff8fd5882ef12. 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/USGJS1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e7697e359d73e2e45fd0d480d0cbf3180b69caebeb6bd5146ec670d5a8b058. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USGJS0767007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915758c9a4f13db7a3d3a26f0505b3536f163baf650cb12eb2b73c7c81060ed6. 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/USGJS0770007.
Fill In The Breaks: Ya Can't Pay The Rent With Props