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 0x3db5fc4f14972c0f630b558e491d23b34a5952a3406f60af0e9e35d70893087b. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c90257b5-294f-49b0-8101-36690bf16c2f.json and https://artists.proofprofile.net/proofs/artist/c90257b5-294f-49b0-8101-36690bf16c2f.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 0x2f7ff79cfa817240daccb324097881d79122a4502fd00c97c048bdf19c1ffe3a. 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/TCAID2434837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa52dd0ddb4376933e7230b82e6f84412ee2da05e7572b02c0624b2680b0ef7. 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/TCAID2434904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad45ad3bb8e8b843d76ce73afbf4e6d0d8b73f2761147d343f656d60e4a41d8b. 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/TCAIE2435037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c12af5c97d599aa78a235adacb73a635cd6f2e63df2a9db9c598de93b8356cd. 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/TCAID2435099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d981a4adb078fa3877f3fbdf9f0838cff68162792d0ac697b34cf5f2bff7799. 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/TCAID2435142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b6ec1e9a7b99489420c0fde13295195104322a047ee320574db7ec13a7bb3. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/TCAID2434854.
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 0xdaf1501eb640254dbd734d43e2b27e035a70dbdc0c389b1cb465998d9efc143a. 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/TCAID2435088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5b08914a6c3d7ae9bd2f93b221877d775104686b1d1b7f19f54359c96277aa. 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/TCAEC1969015.
The Game (Forever) (feat. The Narcicyst)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb6f4bf342ac75723663c1ce834cabca9a271172cce82b6572eb146d3095cba. 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/TCABE1212731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4806d3fe74175ddafb7cf2c5499f6a866892f71606ecb78644b562f87b18e73. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/TCABE1212582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57be493136ffe3753645c9d6e0f430d6671c665c41289fe61fb83920fa16eac9. 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/USL4Q2438544.
North Face and Tech Fleece: The 7th Summit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1530c4ef0902dd75f68edcc5d26775ab2a3e8e9c478fa55205499b4a9ee6fd. 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/TCAHW2478225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8931c736e6dfd9debbf27993e86ae5c69106c82f3469aecf52f1e3b7c0f326. 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/TCAHW2478265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885db789b7050ac68d705836c9bcb28b27cfe37e043c8217716d761a7717df95. 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/TCAHW2478297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ddfaf4b30291f0a5e4eeaa73cc66d257021bb2f793cc4b3dda3a5babc15060. 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/TCAHW2478307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b77da0ee6d5de0db5a291d6b3a707769a3243cb4c85c08a6b4fca44701c700. 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/TCAHW2478321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e5482dac0433fe24f0909be9ae6cf4be45938553c0f88ae4bc83ae8e60dc7f. 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/TCAHW2478335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa41b9971ebf71f1a9d5420e0c6cda0566ef1cab10167d25ac1bb9299131d68a. 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/TCAHW2478347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a9c170cd77b52f89e8ff4605113042c3c822c954c8523c877c527f35421862. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAHW2478372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a812a1a673de5ec88c2d26eb5983cb5f3d4def6c55be79b20c600f27362c71d. 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/TCAHW2478409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806e3bd1d80ae6c6eba51c7ef7b8b1071f12001dd7af23c7e557d09d3d9a752e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAHW2478542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a7c17988ca069cc9a1f07a77cefd84dc43e246fa4b9712299771eee4fe4df4. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/TCAHW2478302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4543372fe5bebe1c04af139332725bfbd09dadf9a6a8de9376f00ba73ca2d831. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCAHW2478521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d66a3200a831afb62d5ec7f4f77f29eb72fd4c33343faabd30643031977dcc. 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/CA2UE1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698fbdc062583d59ae9d867b34c8c3c30868e8d0f39d974594b57d0b92bccd47. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USL4R1916233.
Unreleased Hits, Edited, Mixed, Old Classics, Vol. 3