The Ransom Collective (also known as TRC and originally known as Kian Ransom) are a Filipino indie folk band known for their "spirited music that makes for perfect adventure tunes." The band, which c
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 0xb8433a2c299d2e31c9a27d434017ee402081b273da1795e00ffbd9f8776dde51. 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/67f9e8d9-caa7-4619-8133-3e4bd2a210f8.json and https://artists.proofprofile.net/proofs/artist/67f9e8d9-caa7-4619-8133-3e4bd2a210f8.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 0xe09cd3154ac78f4a6ab9ee632a4c3683d5aedc4961ed2ad640af6e22b0cba876. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADB1742304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af55dc42a058b1f2874c7e44cb13756c1c51a72a14dba2bfc7b3d048a1d037a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADB1742307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449c251150b3268c349486be4dd0f591567ae39752f64a0604ee2c58c8b9a8d1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADB1742308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069737b2b221e39b9f9a0c5884576447de94a007ee84de98b026add883f5d435. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADB1742309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd994c913135fc3db62189c5262c156fe2fd3e779fc7c5e48350034d634c3ba. 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/TCADB1742314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e27f3d26142fe3cca13d26a9e1f03e58107592f1cbf70f9e90f8c11b2094dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADB1742315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7bcd39b9d6de35542cdf9c3d701017b920c8f34a10cae069417f7fcf1c034a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADB1742317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ec67886c93f694bc33daa3b4230b076e2ad753d4576c8e73b0ec620bf99f7e. 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/TCADB1742318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35ca75644d927d32ad40cbe5d8d098a261271fd2f1d5c8915c1028742fd7c28. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADB1742319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de3562a84df7241b98a9f542779e26c7af85681510933943d9ec6ae46634575. 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/TCADB1742321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443142790378a4836c37174cbdd5cd4c4050981ce77467518d34007444375442. 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/TCADB1742322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957699db22a35362f0dd00874743447d811698f898842edabf3575e7d95b82e7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PHU012216205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a218d73b457e8c8a42f919e28a8c657509057be5f853a64ef1f5a3bb474c1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PHU011915812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd108e013bab3fdf2892216d138f4e3514ea3f3de6ddde373e48ddd393591c. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/PHUM71700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef88602780927b4959e2055ca465588452362f86f984080a7eb669d99550a75. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PHUM71700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5388f2e43474cb5bf36df7a40b54d6657623b152772b38de569d7458fd9602a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCACU1611588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a3ac54c85541045baedd92c7fd695b580a7b75a01759e4df56b5a835ebc05c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACN1652986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd14df3ad95eca25c82e18c2512ebea7d046332a0160aa19a1dc4cef3f1445a7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACA1402198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4aa35456e36e290d59e6f5f358364c21651f2e6ab87da2c76c13f72a88553b. 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/TCACA1402208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8169fcc7cce0d987750c9d677f3b45c89935abd381af7c4cbfc4e5e383b58ae0. 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/TCACA1402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a808ac0e1d0a1073773cc79770f0adc7003a19277ba35ef1be481535c76049. 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/TCACA1402210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d9d0dc52929b062a8535ac9b210ab66745c87d9fd9e27e445ec19e46995f2b. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TCACA1402211.
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