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 0xafa778d87bddbe8913532af2eb6f7c25cac591d77da4d75405d06b9093c21c24. 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/d8886350-37b8-4baa-bf7b-26d5c5ae8489.json and https://artists.proofprofile.net/proofs/artist/d8886350-37b8-4baa-bf7b-26d5c5ae8489.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 0xec5622e82861ca349ec3218669394a4b6fc218dfb0031190545f3b4a5e387dc4. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZF452082196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782bc9b7fdb8deba28af58e82219ac614966faacea0a324f478e1f6fc09bd74c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:43Z), 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/KRA341541454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782bc9b7fdb8deba28af58e82219ac614966faacea0a324f478e1f6fc09bd74c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/KRA341541454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfe47d191b2f445f90cdbcc2456d0f0b4103d70cbfdc439c0b2b1e41a1adfc0. 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/KRA341541456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7463b807b6b6573fd320b9b53ed623398750b76fc2a1d64bc6dbda32dd98384b. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:07Z), 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/KRA341541459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0e5f990b0b19dc3041032bd23eabac441394403c24c84827299fdd60847213. 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/KRB621301205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee789888bd26fdcbd2bd1e69b3b7e4ee2b8292b7836ca4340dd58f8225933944. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:49Z), 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/KRB621600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcd27ba9b67ce6150e7eadd0ca0bf7ad41dcec18f4eb132ee97908e3101e050. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/KRB621600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a62c858804c0f5a856ce727ebe82d7e45803aeedab8dc00c425e1c93e23db5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRB621600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019b2436878ec1046c892f8e4d523c34cb631b3b70bf39c7885e9f045f05f2c4. 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/KRB621600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59e753ed28b6fc52e463b14df415b1dd00e1e21158c41804db8141e5d321a36. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:41:23Z), 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/KRE891700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c6b8725b164ed1c3dc7e36ee0262d3fd68a0388f91d30909d14cedc7c00dde. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRE891700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee9debdec671d6dd19ffbc2f1a7a2c930d886a1a1d25482632dcacb1c65c191. 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/KRE891800108.
[Vol.53] You Hee yul’s Sketchook : 30th Voice ‘Sketchbook X SORAN’
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2af0a87c7f3caaec922653134e150ea1ee4036a91c5934d67b356123f9e3d9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRE892100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf984aa486ba513fb115e7655969ae9178a358a8b02a639fb44561d533d6ff. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/KRE892100082.
Love is for Suckers, Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62cc4ae69c0850e38cd4c8ba8e5baae4bedbce58cf0017085cca5603d7d3acd. 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/KRB472202036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5d89eeb6cc7763b5d3b554b315bb79afdd92dbc631540f0d44e4c193edad2e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:37:21Z), 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/KRE892400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c19838fc86de51c5452373fb98a074cd163d8e6c9f35996136bb68032eb3ce. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:08Z), 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/KRE892500014.