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 0x625dabb3acd1e7131e8fbf2753b5d8009043f674889cd459aab2fbbfb0cd757b. 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/8bee07db-9d19-47ba-9abd-93ffe33171b5.json and https://artists.proofprofile.net/proofs/artist/8bee07db-9d19-47ba-9abd-93ffe33171b5.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 0x064b019442f2c0187e88a7b63e6524f89cd275e9e323977589efab585d98a87b. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCJPQ2284675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dfaa945d23081488dca8f41e5cac1a87448a953c8348d95a65faff752ec5ac. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCJPQ2284623.
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 0x482fabce64a4d99447500f5f46447a0be0227bf9ce208eeaedd7972c4829726a. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/TCJPQ2284683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd848350f52f35df45e274af5df735126de3a792611b9f22551b5fe2079656c1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPI1954205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1e94edaaedc4ebf720ff3fb384b7eafdea7c3be3c28fb68e7c1ea616a62304. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TCJPI1954193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fd27c532345efc85227111d93e34f93222e95c832edd87796261d9839c854d. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/TCJPI1954215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3671a2f8b58f890e198d37b3788f5337e70502390d16302df4e01be97993c60. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPJ901707560.
竜巻一家 feat. TSURU, Lil DRAGON, HABU, Bic & JAGGLA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9b45ca01db08279ed60a383817681bfdc2abd590c2d15848e81c8a725b4359. 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/TCJPF1733572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa04febc1c6d21933f6fc56f5eab8acbcb3b500398690a72d3d2bfc5f0c9ca1f. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/TCJPE1609432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d2ef9b6d3724dc3d546b655fbf729aa0d457f5df29109ece11186eeb5a82b4. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPJ901707550.
OUT OF THE SPACE feat. Ryugo Ishida, Sophiee, Elle Teresa & Yuskey Carter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87fb74b214e90798dddf8e54aa046f88df23ef89156ca3b3cefd60c76465ad1. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/JPJ901707570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cdaf8213bd1ea671311ed21c8348b573d47ddfb071ef274d6bd3d7026e5ab1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ901707580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef735211ee9fcee5844179af9546e3f0c0e341013b75af73430c058b1fccb2ce. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPJ901707600.
TORNADO ANTHEM (feat. LIL DRAGON, HABU & JAGGLA)
#TORNADO (feat. JAGGLA, TSURU, HABU, LIL DRAGON & Bic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa889a025783907d57e7a5c0332e1a8b92d6ad3fc9323ce503a9036d9545eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPM2058526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1052983301e0b789b28a89225feec233c75663a4b14839308cb51c33081637bb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPF1752160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37b9f239ef4c0bcaf12d30d8e57b60c94f2d3ede77a72ae018f8c0f25897a73. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPM591001086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe560621effb7f497be7009714963ecd1dd4b68c875dc34260610c1d4084c3048. 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/JPM591001093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20af3428f0d14c37e83ee27c90732ca9ac9f10c558984313172191146183160. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPM591001102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9203efc75fbc5b6d6f774355ccee92f1302aa2f429c99b2bc87d057baf9863a0. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPM591001094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b43ff5a15b9fd8ae400d22a8efa8722eb0e54ebc016771c2bda55744e995b3. 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/JPS801839901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bb3ce45367fae52e92d43c926d6e8e5cd0a30ca1bf4a0c23d623c40d06477b. 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/JPS801837959.
ワルノリデキマッテルリミックス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b758fdeeeeda0022c0d45589d9e10069ae8f0c37d271790b747b6b99b227a58. 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/JPS801837563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08637c79a5b2590d7387823e0199afde42dbc4b37927d87a87f9a86171a06766. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS801837961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9577fa3cf319406065c08a0f881a7fde2f501c49990be33ac927d02f7b3a6f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPS801839903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc260eaa0afc72639dfb308ef223b7c21588928cd4b5266770c9be540f8d7992. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPS801839906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb3bef3dfb87b7d418fb5745da1778b3242759ae9dea150f863f4e35211c49. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPS801839907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad84bdfe5495616f3090758b166e9faec1ae0f9e6d4f7add73319a127b943f52. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPS801839908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ce394c4918e558c194df19ccf4a7d9e7077ae6b4af25c3eec89b1cbce0c96d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPX601700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953152708c83718bb8c243303409d44f51077ad038767697e909364a5d5a1628. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPX601800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d3980c797a3a51eb613828f314af36699d86232affea69922ef8f330012ea6. 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/JPX601800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263c82c636146456e169546d152ca8d6ee2cf4d870dfd90e06900ed011510f9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPX601800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90360fd0b0a1d04a1bd0546de5cfce75e889a6237f168c930f310793cd829f3. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/JPX601800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95401dd7e93ac09541e3634a8eeefb260a2aa070cf64cdbf3165105ab45bba95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPY201807240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901006396f7c22b1f21194869a67e9bf0fb760fca80f80dbe73a575df5d2ba74. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPY201807241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cf7466327c46a88e0804064f7a2cfd4c698e636a1964ae7e7a1df277d3cb7f. 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/JPY201807243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe8764718a0442f38278b6e3bd3ad6a54b5a0e89eb6d8106fec54618449e564. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPY201807244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad131a579842c608e5cb684e35aa2c52c74dc421903420cc624dea9b8e3120c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPY201807246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5275504ff70edf4826ee82c88aede45ce05ededf594b9ef31ba455f5fd2996c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPG1744144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664855e39668ddd33365b77e45e78b16ae46e97330b9da28fd77c084dc45a255. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZK6L2475215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285593d9c20cad6d29540d245b5e7a61f5b4ec17005d87fa65642aa1f300b83f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TCJPI1975381.