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 0xbf4e970183bff9b58a7929fdd2e3d2f5df039ba0702c6dbda8df571e17b0e31f. 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/7506d3dc-6851-4f8b-a6f1-3c7502282647.json and https://artists.proofprofile.net/proofs/artist/7506d3dc-6851-4f8b-a6f1-3c7502282647.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 0x67db915219d762aebb78dcf44598a7aad8033444a57b57209289774a1cad3fe1. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZGLS2060012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4791a275e9fa8eef13039bc603d5bbd2a6370aed974b3f6c7693e1dba03d41. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLS2060014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705b56bb752065fc186cdf77099361e5b064ed22ef6d167c05dc2d785edf7f41. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZGLS2060015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88245ad54af0667b844157c50953f9040b3e5808a444bb0cf1f63ef79ac8cf2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:50Z), 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/QZGLS2060016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a1a2354718ee9631d3751b8885b445653222d33b1435067c5ef332d4d106af. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZHZ42106808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5401f0e00333bb13bba8296e7bcb29ee9d481fe9f0eafaecc3ddf0aff116017a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHZ42106809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c31766d52ac4579915ca63a32d2f14c6061bb5f890ee4f0b273aaa2fd615620. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:50:38Z), 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/QZNJY2159236.
Now That You Are Sleeping in Death (Waiting That You Will Rise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0bf7bb32fa6b289e749a09fbfef117ba8059eb167d162b99eaae0450ff40f0. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/QZNJY2159239.
The Best Themes of the Songs of the Kingdom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ff9c9a8078807c0afa45ef5a5f947ccf2520e04902b2b16023118a29e751a0. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZNJY2160870.
The Best Themes of the Songs of the Kingdom, Vol. 2
The Best Themes of the Songs of the Kingdom, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090e056bab412b0763f1a911253255e840247da195788e6c43e17521c7ad5296. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US7VG2350795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ef42a64b387165aabc710f38d09536a5d50a7b036ca08a8bdae7210227bdd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG2350794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24fb6c61d6f156c83b25d512136801f667efdbc5fd0cc7f08ebb2e2ce47d7ce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:32Z), 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/US7VG2350788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f76ae419cc30815cedd4088ccfae88b5c6dc6c8fc34450fcc4048cdd1719e9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US7VG2350789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144948f7519b87f4fdcada1f3ff5864b665264e631fdc172eaf62b4147b5623e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US7VG2350792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586a8a619434a8a6bfa1be647f5ef5e001b0914d44899aa60748dac096af237a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG2350793.
The Best Themes of the Songs of the Kingdom, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab7d6d952d135f82b2220ec649522cc473752d593f94619ae690e3bb925988e. 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/QZNJX2338781.
The Best Kingdom Song Themes Vol. 6 (Cover)