From A to B may refer to: From A to B in geometry From A to B (New Musik album) From A to B (Octopus album) From A to B (film), a 2015 Emirati film
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 0x7a7db7577d449c6c8c1d8b4700e5e1799a1d091cea8f04369ec1fa668915212e. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08474d2a-a05c-4d6f-86e7-1817dc727972.json and https://artists.proofprofile.net/proofs/artist/08474d2a-a05c-4d6f-86e7-1817dc727972.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 0x9da96555c5aa5e32ccd49b5b4e88b883db329cf6679e2e2a277ecdd288ac1a83. 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/SE5IB1702001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fc511931202f849a9acac42a761361244071ab6a977bf27cd5e61e58b62fce. 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/SE5IB1702003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373ba649c71f5a0b51e522dd9c294052cf3f649590e34dd140c06e5012fbdca5. 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/SE5IB1702004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba3d1fdaf422025390a88fe82de74a4a3c78aa363c2cea53463b359bd857ec2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SE5IB1702006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6df61e4a264f13a207e458591ca2b29c70a24ec81524674afa0c39822b08a6. 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/SE5IB1702010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23bb6f3380a786103bfdd6c41776387e216e438d785428a486be8b449a8c261. 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/SE5IB1702007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f97fbcb9dcad3b5368854545ecbd46cdcc8a9e2f1af9ea1ec95af86d689af1. 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/SE5IB1702009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417d4868ec6d4a547555b20782108aadcd84b26c73fe7e5b5f6458e99596b3dc. 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/SE5IB1702008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0d81f236610cb5638e4af162949235ae7d8fca6a0739f74e32b2bb23e7993a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5IB1702005.
Lulling Train Clicks and Clacks for a Restful Night
Train Lullaby: Soothing Sounds for Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99555f47a780dc3c6d7c2492855bfacf79693f84ae9e9a66a0d19633a7e1cb75. 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/SE5IB2324915.