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 0x3111c804864e7ac60d2d2c57343aec992775bd9a0b62c80aa0b1e157547623f4. 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/f0d07db5-4216-4cac-b5cd-1105a0430ae3.json and https://artists.proofprofile.net/proofs/artist/f0d07db5-4216-4cac-b5cd-1105a0430ae3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Introduction (Increase Your Power Through Vocalization)
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 0xad79342e08f04954a0e4d107dd8df96f522ce1950de0d817d25dd9d75b4112e9. 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/TCABO1312661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0692ed1e4d77346073038a0050f3bc4b8c1860a24517cb1b05675b467e40b84f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABO1312718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ac2617affa03a4395e565aab2257a748e01298922241921e11b47de025df86. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCABO1312720.
Exercise 15 (On and On - Crazy Arpeggios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce1186c61b76f5426c1644c64abf5785bb5a12f3f9ade02bf80ca69c466826. 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/TCABO1312729.
Pop Licks, Vol. 1 (Vocal Exercises & Warm-Ups)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4a9218b51808814d12886ffa1584de4d73350e21db91ab92d5e9b6c292e5c7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAEK1930945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45004d738797cb0c92a29a276131693e515353a4578fd06120b796ccf98dcdd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAEK1930947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5422add985e02dc64e6555c7b78b4b0691691f7593f70d9da360f06e71146792. 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/TCAEK1930949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334dac3948eabe722f77f5c59fd069c16c31ecda7c6d414cee390cd9018738a1. 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/TCAEK1930951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e8422f375d713beb1634bbee0318d273148259ce89ee7df10d40f60f992b06. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCAEK1930954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565c29d8751c58b616a3a3c615ab50e5b42c6d4112e5c131d31ba806b7d01a56. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:51:16Z), 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/TCAEK1930957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcf3683b25af15f39e473cd72a088fb8041345071d1696046fbd1e41fada8fe. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:07:01Z), 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/TCAEK1930961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1068cb0181db3c5b7f5d15acd78e2805be21041ccd6cea42db3dca7ec16d3e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAEK1930962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bebea6655d9282993b3ddf0830f9d603a61fa0a170910a86dac343a57bbe143. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/TCAEK1930964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18b6e0ca4e3fef0a4862673ad78e5bac8806d028aa7275f9423f1181ff34599. 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/TCAEK1930969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa236da859ecda5a0a2f60f3cad0e1319d73904de48363c65a36ecb97aae26d70. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TCAEK1930972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3080f0bad92322fd598b224b12bc8bddd1955e1de3c1b0d8146a126543a38a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAEK1930980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2adfe681bda528f80cb8342e23f58514a2eac5ed55afa14d201db1286b8cea. 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/TCAIV2443362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd452aedad58526549f981c07f79566391225e6fc9d6eb31960642f49c80498f2. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAIU2443402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5910a1e4736e2f0a80a15f3cce87efacc78a63b45ef461a75ce82749379b01. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAIV2443420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0562b93ac454fab4e0d5611298296802c2cdd19bdd597e7a23d493db3ef9e65. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TCAIU2443437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8eb0495bf2b95faf71cc7244eac9cf9eb61e06187eeb55789299a30861c18d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:27:12Z), 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/TCAIU2443541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6ad00ea12aa20eace2eb3af78719c70e2433834498009ba43707857324edd5. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAIV2443551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce09bdc3e7700a40962a45d9a1aafb80400ad1c452a28efa08e03d11785f0dea. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TCAIU2443563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8c6ebd8956024e685bc4d5019fa9cc185b360bad59d32af97645cf7ab43a3e. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/TCAIU2443572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d5e3d0d71489049123be07c1b00f186af9671dae63a9c38113d2f99805483b. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:23:58Z), 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/TCAIV2443579.