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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8e2a853e397490bd06b7d544e953ecf79e35bc7d69550926cc55130be14e2e. 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/cb573aba-ce8b-4170-a309-d35415422c28.json and https://artists.proofprofile.net/proofs/artist/cb573aba-ce8b-4170-a309-d35415422c28.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sho's Waltz (From "The Secret World Of Arrietty") - Jazz Guitar
Anna (From "When Marnie Was There") - Jazz Guitar
Sheeta's Decision (From "Laputa: Castle In The Sky") - Jazz Guitar
In Loving Memory of Allie (From Ni No Kuni: Wrath of the White Witch) [Jazz Guitar Version]
Lady Eboshi (From Princess Mononoke) [Jazz Guitar Version]
Lady Eboshi (From Princess Mononoke) - Jazz Guitar Version
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70803e2efe0c0e872ae91e8ec08e7dcf44b09f56cc67c83437bd8b5946dda099. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2390063 — a six-check JSON result.
A Message Left In Lipstick (From Kiki's Delivery Service)
The Shire (From "The Lord of the Rings: The Fellowship of the Ring")
Riders of Rohan (From "The Lord of the Rings: The Two Towers")
Sandgem Town (From "Pokémon Diamond, Pearl & Platinum")
Evenstar (From "Lord of the Rings: The Two Towers") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670133570dfc18dde70a6ce9f7eb35aeb40b1e3866c7dcb17d35acb5ab6fd3b6. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420827 — a six-check JSON result.
Rivendell (From "The Lord of the Rings: The Fellowship of the Ring") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd3f1af74e297c4513f0a2bc43405d553a28bf30b4b26b841f4c859e7beb323. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420831 — a six-check JSON result.
The Breaking of the Fellowship (From "Lord of the Rings: The Fellowship of the Ring") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8d5e35b16a020a194ab70da31b5a34b105eef9533d3d4bf02c24026e8f7748. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420834 — a six-check JSON result.
Éowyn's Dream (From "The Lord of the Rings: The Return of the King") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a80dfcee39ced2225343b8e48aa51aa3a77c4bc821f7b7a963433d16eafe62. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420837 — a six-check JSON result.
Roots and Beginnings (From "Lord of the Rings: The Return of the King") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18776b72d9121ac9b71ab16f2e49580ef9908143b18d2212d8229e2bdc73c0c. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420838 — a six-check JSON result.
The Last March of the Ents (From "The Lord of the Rings: The Two Towers") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea74aa6498cc537350de3de0d86962fd5927a099e861b4c2ed38363867ac731a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420839 — a six-check JSON result.
The Mirror of Galadriel (From "Lord of the Rings: The Fellowship of the Ring") - Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff398e75ed8075000f30e261e77fa8260ec76046467649d37bd719329a8b099e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2420840 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab70b4e0a8eff222b4cbc1984b01901a6b5b9b28e3de2c5c6b4f751ddf67e82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503860 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e08c8058b46609816aae34377bffa4982568fe762df0667a0334fd7d3ac19. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503864 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25039bcefea7da3c15b32bebea342c0c0c703e144e7cd8a396f1102642426a1. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503865 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f0fee04872bd0aa15b0dc5dd0a36dcfc9474972c47efdadf69402c0a405e05. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503869 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161d252a66c06e813085588a2797de9137fdaa49fed98cbc52f1ae904c4da589. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503871 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae68992e67eb4f753b85c4bc53f3a9989b74a27a131abda1de84f30469bf7ff4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503873 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e403ea146c590a122d77116c9198fcf96adc56e06db126722d3a03de7cc25a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503874 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718e1699dea9c9e7c643b2d1b00a6b3477861ac58d21ff4d37e996a534d681e5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503876 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d162d4143ccdd2b3c6c6050cecbd0b457729c8da5d105cc191c28f13d46724. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503878 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa3504b7b3d7bde18af9edd4916722f0f75dfb6b6075237018b5d4b7de47a01. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503879 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c7bb103c139a5997724712fd35f94664624bce787dcdcd611b3c677b8b2010. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503880 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c58f670de81dfbc377741012ebd2af2c0f7ca1f1c101bc72c58361a375b1685. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503881 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32c3b792bc7687be54db576ab83d374ba5cd72dfa609a642759750e5bf99dab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2503882 — a six-check JSON result.
The Godfather Waltz (From "The Godfather")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bde8956e3058a37d0335093ece21811204ea57aa2314c336f558b2db8f1b6f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525954 — a six-check JSON result.
Vincent's Theme (From "The Godfather III")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81ee586953937c221242f3cd4fe6283604c6976a0ccd56b3e13275a4c454f6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525957 — a six-check JSON result.
Theme for the Irishman (From "The Irishman")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6166656ec7c7e911e6f8a01589af178293388d80fde39de2acf623136c7a57a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525958 — a six-check JSON result.
Once Upon a Time in America (From "Once Upon a Time in America")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d2775909d9b9e32ba7bd74d2fdbee62cdf9f69a867defd589096c692e1fd5b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525960 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658b276a61a28dc19be7af955b5400a57c842c1fa83491f83ffb5b894e3807dc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525963 — a six-check JSON result.
Deborah's Theme (From "Once Upon a Time in America")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb295e1bc921011e362d16254b27372484c9d70b2ce5af849f2690b9ac8cec7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525965 — a six-check JSON result.
Song Of The Barefoot Contessa (From "The Irishman")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1abb1e7956968579bf3f835903e184180b19d9edca645896fddf8aa35a6c00a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2525966 — a six-check JSON result.
The Sixth Station (From "Spirited Away")
A Lost Child (From "My Neighbor Totoro")
Memories of Gondoa (From "Castle in the Sky")
Scarface (Push It To The Limit) (From "Scarface") [Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae06ac6e56338550741769e6b43fec4915a2bdde438e9c807b6d66d3798e80f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2557868 — a six-check JSON result.
Frank Lucas (From "American Gangster") [Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc66433ac151ccc2700b8d42a5398af38b274db04d61c6e4b4313ad1bd42c519. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2557871 — a six-check JSON result.
The Brothers Mourn (From "The Godfather II") [Piano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6af591b0ccd8ef21056743c2d3ab8fb45d1252ad32727baac93ea72a7981b6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2557874 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa963a0593a1f0192e5ec3b5e03e198731a21555f5de61feddbc3fe71618234d4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2557877 — a six-check JSON result.
Doom – Trap of Clouds (From "Castle in the Sky")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb72ceb0ef4ee904732469ca6f8cf51ca15cdcaa7337eabad810fde157ed65a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2530200 — a six-check JSON result.