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 0xc4e43846e140d5888625c24548ae7a39001a8465b9ce9b247f15e9334f1a0649. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b528a9c-ca87-45b4-be91-e6d655181bd9.json and https://artists.proofprofile.net/proofs/artist/4b528a9c-ca87-45b4-be91-e6d655181bd9.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 0xcfaa13aeccb1384476f4da0eda49b7e6537a2441ef20ee2b7e309a4684fdf133. 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/NLAM41200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec41508d6da54f594a43bd74a7c72c93da742df088034993ac4a834d46930ad. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CAFPA1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051866a3bc0040e4325711e7a1d5c2c985d117f02c1a5f7ce6ac71b7d7b6c1a6. 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/UKACT1826773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4652883436b576c73cfc40a5f000b2c184e62fc18bff1702a3a063c4b78f165. 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/DKZVA1761527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f128d6122d41d08020445962046ae1fbdd6aeee1e0e3de49bdd5f5ba782b0f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DKZVA1761417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc89cc445d7e4217240f19b382e1555cc1fcc992bbaace9308372eec139cf8f. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/BEY921507888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63311a6add347008724bb9e14877805838fe37c9e8b85c57af20b8aff224c053. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLV61622157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a05d34e1bf6b98338c1d7141c0f31368abddc6aa4da3cf16d668b8f63bbb9c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBLV61622156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1aa5970e614b50b82e7309f8da9853dd4aec978713a40bfec74e2349aebfc3. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/DKZVA1962320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13085b28db04ae056f5cbdc39defdd4771ea629e07fabfa4942ca5248f429cc4. 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/DKZVA1962321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858954cd19135a6f9ff8b10342e88ba7dcefdcb43a79a7f0a8ead741e15060c. 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/DKZVA1962322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b53ffe8dbbd65c89099e624d7aa26cf7dc29feaf659d4cf1c73cbb1cb3cddb. 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/DKZVA1962323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9ec9f1d7a210ea6099873c590c107b734a400271c1660e132d9dc261e43b2b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DKZVA1962324.
The Calling - Symbolic & Lifeforms Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27cdee50816c24620e635dd7dd0a3b816756a94c3084715ab090e8e7e59c5e. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DKZVA1962325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa344f7eacc4c2c514f4b96040f975fa0551b89be35e67fbb34691c5af2caf5ed. 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/DKZVA1962326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d51b7b828760304c94d29bec5af2e668ff0b19eb509d1ab3463d396937b280. 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/DKZVA1962327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c99cd0617ea62ab3eb33bd8dfa1fe94034ee25fd5d37f433021717d6caff3f. 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/DKZVA1962328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe8978f31097bb026ade97db9455f7c037fe08fbd3fa6ba1399bcdfcfac050d. 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/DKZVA1962329.
Seeds of Imagination - Compiled by Rikam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd079e57575cc5afef3b99e8640ccc182343b1b69887b8b53cf1055a0c4e9842c. 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/CAFPA1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4767cd84114406dccd0143745bb5048305c7e3d7b0d9423000e04de973990808. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CAFPA1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc89cc445d7e4217240f19b382e1555cc1fcc992bbaace9308372eec139cf8f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BEY921507888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fdb4c8bb5079f909d7d529003a67126e9f5c22cb6027a62e3f6baac8935ad8. 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/CAFPA1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabcab5128b555a669fb9ba55c871b9039a50f4dd669cf7498f06f4554309aa6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CAFPA1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45259f4810dcca6382ea72fd5e2a57f775b105dad82e0df39c120ddb42d23a2d. 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/NLF711607199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d92feaba2e8a32699b41cde72ddea8d2831488457a6f8c1a25c44dc460f064. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLD681700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ac9d7a7f1a41abcb3070855482d4cefc944557187f93b122267106c2d1ef5b. 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/NLF711701031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922bfe64a2599ef809452d715273f40c9b7bf61f1a3e9b1a0bc00c5ce833c7b4. 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/DKZVA1661188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7c21c51cdf91518722b1ed4acd6868a8b2014ea0bfe50e5999e8f42125389a. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/GBBYB1702839.