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 0x28cb9a39109fbe336e958556d8022bfba3cdc3981f0c273e903059ca64d8c49b. 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/cc3abee0-e69d-43cf-a36d-16426dc92b06.json and https://artists.proofprofile.net/proofs/artist/cc3abee0-e69d-43cf-a36d-16426dc92b06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do You Remember/Don't Say It's Sadness/Ocean Rain/Afternoon Grill
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 0xe9fe2d7ba7824fba53a5c4ad62cb0202925d827a81d566939eb9b6d12a49e3e0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRMIM1813654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a51ad6f6c6ede67f3c90652725319b2572de522c4385966801d669126733e9a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRMIM1813656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9803cfa7b26a49a1ba78340290d90b8b9001bb778d080dcbc4e45d3f5aed142d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:36Z), 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/KRMIM1813657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc110a3b88ae2135db99649ec6c1fa95ecf98a353165224d635234a9dc56c2e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRMIM1813658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc2647af36edb796ede329bc2b51069dbf04e9aeb9444cc2cd49d78a88b0fea. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:13Z), 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/KRMIM1813659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6de959b5c0f0d0f5d932aaad8c11cd2d66c8de8c498085853bdee516d52beba. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/KRMIM1813416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb9e90b4116ef653cdd854f9dcfa9b85839c3ec0d781b80e99a4da65286211. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:10:48Z), 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/KRMIM1813418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c551c6953826d7898b55f9e798010b76e50ec2532a33f7e00edf9232c107e05. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRMIM1813419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b42f8329f49006b4c6f533991a3ce771567b2cb8345922745f15b56d41a6b7. 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/KRMIM1813422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9807876b17c243629b59b70b4c42903e416c35b646228eef4236f8f6cb0c3c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:03:06Z), 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/KRMIM1813401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a7a4f9290136ef39a694e31e3e0881931ba60a0fc831db645081dbae7627eb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRMIM1813403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8c1a5fe8886de5371433e3349a9ff49ae653c8482f219faf91442b0155e26. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRMIM1813405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bbd8f8367ca42a83eda66f7d0b4d6faec9370fa82e1df55636ba8980d04622. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:37:53Z), 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/KRMIM1813407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfc7fe5384b72ed38d4093abd381a2f61d2811a2ea642cf6d933ddcb40f40c4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRMIM1813409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e2d8152d60a8591139cd78d354e2fbdb0297038f5fe05f5ca52ec1f792dfe1. 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/KRMIM1813410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4a8be2a20faf3f7251c3ceed03d23e66a74fbf17f5ce077fb2a964ccbf166d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRMIM1813390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf435b83237dfa7b653d40da3b687cb7f8fb2f0c935042fcb17b512e4897fda. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM1813396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7469c29ec94ecff5da9e799f202e0e8742aec1dde80d19361cac49abaabed735. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRMIM1813398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf20801750ee5e9a9f46306a744973be33487e134c6461f551f32d21cddf187b. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/KRMIM1813399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f21300862471203d580d7857c1bf991219e208023b408f1683b1b4068dac68. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRMIM1813366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b6250bc9aebb78526b61496e0e91ad3390a504c9268c53cdc8e3b00046a57d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM1813381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3415a22acf4da9a9fec40cb9e462d1cecf3b255bf6ba57571c93dfdbbf3ece36. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM1813371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abf4387f5fe612515a6d90648b14dae8dad6186000c95d24f1a8b811dff5d3b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/KRA341207366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3cc82df6c12d2f5b1c0ce39da0686d6e0a1603e7d39f1e807549104e3c20d9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA491200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8efe784e91895cb5d0698e23b78c1c9a33c9e95964e3b78801b7b9156c7fe03. 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/KRA491200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410eff4bf2cfd132cd3a9b89fd13ab582db1df0ada0e858cad06eab8a16614cc. 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/KRA491200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721887d3218c224db431a324a527ffb938d8f36df54ab6790c4bc438daa67c0d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA491200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff185d5ba051c833acda681dfc87adc523836c0e0c9e0454b7f561222305d92. 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/KRA491200227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e873b22769e05adf91541d04d48a94de8e164846b3b1d6604910ef203f1697. 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/KRA491200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee5251971badb099cb99da999cefea28f346840af8b511a817f7ca8fcfd0c0e. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/KRA491200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f853eb4a0f47d33726fb3a04032649b0a91f1cf2bfc19ca4f689064a7ef3fd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRA491200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679bd67bf42c77df7d40052887544c07bf43f57991037d62303d9dde898cdc29. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA491200230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981db9014791c1b96f447f827a034af8b1a4b7a744cab867904b1569a2455127. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA491200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fbbe6eb17722378beb0f14201007fb86100e6da485c9872da521d02ec664e0. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/KRA491200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81db77075935500b9674c48cd266af7dddfa0d7843687afcd2d18e944ce811c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA491200235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44af067d8a323523739863b3534af3006014573534aa3834ce74a274ab84575b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:57:35Z), 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/KRMIM1813427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c80bcf358af765b0cad3f5ee8634a51f266ee493449f6631816314469fb4fc. 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/KRMIM1813431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04aef1de82d00c81893e9c4088b9b519e262577a6e9a3291a35e5588f01139c. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/KRMIM1813433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b7c39960f2f0f5aa44c457f298417c6499375f5f26c8b9f3075d5c6ad77416. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZF452012386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe9bc4818f19b95d22e388351c439b132c993379969c99f5c75c89890354005. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:33:01Z), 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/QZF452012388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbbf3b9a7c7d39ce876223b91dc5e77b5f386b7c4b12f9c3f77ed5859c89297. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZF452012390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a1053e7ff7530bef8018aee817fc8ffe7c10e3627e625c81da284d8ec13be9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZF452012396.