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 0xb5851ad24ea39c46bbdc61b4b9a6203b459881cac2429703aa601570ec377549. 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/5f5b74a0-aa9e-45e4-8f9a-dacf9f814de0.json and https://artists.proofprofile.net/proofs/artist/5f5b74a0-aa9e-45e4-8f9a-dacf9f814de0.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 0xb6dbcd63dbd2cffd74d4e882cbaef0b3518d7e5848416abe2cc06b0a5661f674. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/PLU381700001.
Christmas Morning: Busza’s in the Garage
Christmas Morning: Busza's in the Garage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62596580a0038cd8b09958bdb5eb309a2262f8760ca4f76c4253aaee3ac08468. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLC591900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b74f1379509361df9f0417c78161c0ee8736a52f6bf8531dee0c753925ef4e. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:03:54Z), 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/PLC591900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa189afff36d69c3868f85d29a1e72e822926e6d06095ce977a97112cf64d047e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:07:44Z), 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/PLC591900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce87003dd96be8c01389453f6840dea843762c8b154453d7f69cc5e02a8bab1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:01Z), 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/PLC591900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b6645b69d7239c1bc0aac1a1eb4fa43bfdfff3875f04eaa03b37772bc15d6e. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/PLC591900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61d3e8bf8655a7350d0d5741480a7855c06866a3ac9b6d2609851a1bf436c85. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PLC591900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48de1c686ef48542dfb07df11723a953b559bf7989ee0241341f07817bb37165. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLC591900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fafc49585c2ae855a0157b7cdfeb7dc2501a5f864f6280fd95fbb19dab1efd0. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/PL38I2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b0e2aa7857a1c168c5f2ee939c26ff422293158d140313c26cec039c2e987d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PL38I2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f537de32d2ef24495bf17ca090aacbd5a544f91b27fa8e701ee0adc6c0037b2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PL38I2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd922009ae8ff8d8106e812cf05a8180778f8f5122bf34b99a1279bbcbafc919c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLC592200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57878b6a211e894cafc52f92d59d623a7a9fc58a17c9b590b16668c0d27337c3. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/PLC592200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507b24098978143ff0e8dbc7b6859e1f76074f40e417f4d8592f150e45913526. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLC592300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428331e914deab2369446d96e48bb1f077805eead708a00cff6e99068903d347. 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/PLC592400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917876d6d7627c95fc7dd5262e14cb55282beba166c99bf13f83397688b9398e. 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/PLC592400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ec2436033a1e827fd8457b3718f27545411b393e2e31dcc59dcf5d54783235. 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/PLC592400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcffe44b2fbdb9c408e39b32f4a3b340ca87c549e33724b166f7d2ae79286d38. 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/PLC592300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde071847690e1c896d9c96d392ecc500e7bdd86b777e4d6b4f073973fc4bf96d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLC592400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd318831d500613baf52cb5be05e3dea957a1be0178b728c79068b66ccd0ed565. 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/PLC592400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a333c77090d8d9e7e0574997193a7d6ff5847aec9fd2c393bb83efdc4555a8. 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/PLC592300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388cad571d7a9311d734093e2bfd75936a067cec2e33b6cd01c4e90fb357f8ba. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLC592400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ebfb492f423855f6f781a5ad08a8b3f612af9a093573b44f304be9634f8875. 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/PLC592400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6d8f5cf7689e68f6094148c899c62fe871b27ca1219ea6e43847e38bcc1440. 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/PLC592300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82a5c9b9c24f19f34881c86e6768c7f82274b416f4ac2dfd989eae25e291be9. 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/PLC592400033.