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 0x3e20b05557ee9444d6a175e2ccdc194fa431f7335e3ca741c137635c9b68239a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5269a2d-9033-4c88-8c2e-0cfde41ccf6f.json and https://artists.proofprofile.net/proofs/artist/d5269a2d-9033-4c88-8c2e-0cfde41ccf6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bloons Tower Defense 5 (Official Soundtrack)
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 0xba42cf3423d3ba189868ab9d76c1adaaef6d9e6171c4b4c3a8117b89d2364f9d. 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/QZFYY1962290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e501ede4bff69b0938bbdcb5ab933acb0e9ae000567a05b31bf631626e57cd8. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZFYY1962291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2b6b19de794ea38e4627ceacc392db1fa11afdffaaf3f1653e5816340d098a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFYY1962292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4387865cc6e96464d636c2a264b90cd192e1b8b1c6e3949ca1a6cb67f9f8ed30. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:50Z), 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/QZFYY1962293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1dc1fedf694c763b71607f97958ed7a2d97e063246c09cdf86ab7b985eadf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:52:35Z), 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/QZFYY1962294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb8392eca1760e7138a78a086da1838f90932b3b5d71af0287795e2f92692db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFYY1962295.
Bloons Monkey City (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea2cd6ccb3c1f23ee432afb3167c5e6036078f78a7cae3d5a075c015d6aea10. 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/QZFYY1995597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eba3e13f23b97e3b7740afe67647fff77f385384272cc0128fdee1b5673c26. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/QZFYY1995598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41896fc19388ed46fac767db4ea14af61e10301ce0ff3598e68d603d4cbebff. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZFYY1995599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b33753e08a4c9f45d4443e9399ebac8b67d74c4ca747d11592ec469dd169cf. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZFYY1995619.
Bloons Super Monkey 2 Mobile Edition Official Soundtrack
Bloons Tower Defense 5 (Original Soundtrack)
Shadow Man Soundtrack (The Complete Works)
Bloons Tower Defense 6 (Official Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67aa5c0b7a7af051e8e2b901563bdb79505b445ca923f5ad55ebec2910e6596c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZDA41895448.
Bloons Monkey City (Official Soundtrack)
Bloons Adventure Time Tower Defense (Official Soundtrack)
Winter Is Coming, Bloons Tower Defense 6 (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5dc8c2a9bbeff7e3a312385012d5e1bf59c48d5fbeffd9700a7ed1f77d2937. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYW1960031.
Bloons Tower Defense 6 Re-Popped (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc832805fe02b1ed0a2c75579530ac24733f0755c5c6022908d8fa379aefad1b3. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZK6P2012210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61238d818e4c6f8db978a470c708e52a7f04e3bf70c1dfea8abdf5ac04ba4ae2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2012211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6a66f6642bad6df3ff33b08e861c712989e1375b09af60ff855c26ba8e6d31. 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/QZK6P2012212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6d7d3a40fcef44a9330f1a01b3a70ea7949ad1250d34640e0696ece819a3f1. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZK6P2012213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7a9b07e3a5ed8158c4e116c4086af1b333ecb8281837e3d8e27d7c0ff687a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZK6P2012214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95213f32e3af90a7cb68aeb28c9eae6b4dee0b7b634d644bae820f74fcc2d843. 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/QZK6P2012215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd814e1a99074b7b9a1f95f6ffc966a825d0e11f9f90476fb1e9a2ebf429bd44a. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZK6P2012216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1513f3959808000dbaed0c636246eedd5ab33a393bc15afed010803f3ffbd28. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2012217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61994f2fb0522d27b7432d6b64190f485cd048c0eca2b62e933f78d51c0b5d92. 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/QZK6P2012218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c298995dddea6c9096c67a747d1f844ee9a75c4b236b4a1289c76eec4724a70. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZK6P2012219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fc4ee1f1885b00fc9c1015e32aa0795be4f35bdacd8e1caa54bc6f01194499. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6P2012220.
Shadow Man Remastered (Video Game Soundtrack)
Primal One : Bloons Tower Defense 6 (Video Game Soundtrack)
Sails Again : Bloons Tower Defense 6 (Video Game Soundtrack)
Onslaught : Bloons Tower Defense 6 (Video Game Soundtrack)
Haunted : Bloons Tower Defense 6 (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e24ea2f967b2a6d22c5088c77305ca5466eacd17eb5a7bd86396c83c18b4a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:36:34Z), 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/QZNWT2177447.
Bloons TD Battles 2 (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17739e7f0659f7c00b2058f428644198da254529e3e0d31e754517fd8a0544e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZPLS2187600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4cc2b5c799a20164139ed734b0392512d4545e9f5e69edd06b6229d4028b00. 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/QZPLS2187601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc732c07ed7febdf696cdac389597be5ecd91b033e7adc49f2ab22228dbdafc. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:32:54Z), 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/QZPLS2187603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe291d9ada843db92bac88a7e9adcbf95dc81ef997cb8f0c611cc38f4f8dea4af. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZPLS2187605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634303e2704d5f502bf9593dc697601cfbb7e1fc78d11f69c672f8f4a81148ed. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:46Z), 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/QZPLS2187606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccac5ea8c19afec2d411c9d3a789c31c2f8d5f5cbd3910580a5611f2f9f379b9. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZPLS2187607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11bc24edad8dda77d20e2d6b813f389954bd8e9eb22598b1715fe1627eb436f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2187608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97052bc002be13746f466bdc67ed4b414e899af33ebf8c492ee265f29f5699b8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZPLS2187609.
Bloons TD Battles 2 Theme Music - Dance Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc4eb27564fa92c0fda63c90eb2a95e1bb2503003c1869f757cd13cc76134a8. 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/QZPLS2187611.
Street Party : Bloons Monkey City (Video Game Soundtrack) [Extended Mix]
Street Party : Bloons Monkey City (Video Game Soundtrack) [Stepped Mix]
Plate : Slap Battles (Video Game Soundtrack)
Slap Battles : Slap Royale (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab321c1bd1cfb99cb19bb0a55589248f475390ed13c8406c5fbddb18a7b3729b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB72330359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdf0885f155d5da134939e68eaabd4b5209860620e1d0fb2a5049aa07a7a561. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTB72330360.
Bloons Card Storm (Video Game Soundtrack)
Rogue : Bloons Tower Defense 6 (Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0c0d1ffa87f8ff6c8ecca3bdbf007fe776dceaff65aa33472c772123d901b4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:02:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82583062.