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 0x68ea1c6488858e135fadcb46fae962462a2109a6c93fc54060cba1b69246297c. 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/a4477254-1525-4c6e-b449-7b6d4b489300.json and https://artists.proofprofile.net/proofs/artist/a4477254-1525-4c6e-b449-7b6d4b489300.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peaceful Piano Music: Relaxing Instrumental Melodies to Calm Down, Deeper Sleep, Relaxation, Stress Relief
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 0x9db330e6b53a93e98e5e891b9957de835a1792e92c6ff7f39115807ea265aca2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:43Z), 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/ITK262200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78a5a4a02b5e1b6d06d000f306552656469b6e92444c85f6ee2dd211a928dab. 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/ITK262200291.
Night Piano: Instrumental Ambient, Relaxing Piano for deep Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4270b54339e998a8553c8eb7a0ff0185d57185299e75922b80c4354088568b3. 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/ITK262203883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f18cbaf9ecf518f33ea86074aa7f062f725c58f3b437df3d8901310b63bbab7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITK262203890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde5da184494860ff140c5305149d926d742a1a61b534e1cbdbeb6bd3cb52e55. 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/ITK262203891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f553782b9733cc40ad07c478230180b8811b802352ce97f0e483b381257ee5. 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/ITK262203893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636db99f96f1e8cb48bb640dc5ef6a30e1d0012b6f55ca89431b1887b737aa76. 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/ITK262203895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94bfee7d0307178a24c747306cb4db2f5155fe6dec6597f4b68d1248d206605. 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/ITK262203896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfef4c4e50bf20f5b6bc7fa279a89142cf97c7a67c9cda83bfe89867696d31cf. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ITK262203882.
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 0x38f494f91d28c0850d28db94fcb3118cf7cf0bb0c0a5d127ae9a97c240082e85. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ITK262203884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571913900ce636173ae560e8b63f000ec984b8cf254fb16d36e8e90e27b76862. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITK262203885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe92fcbcd797f40abbee8f5f80ec06e96869a3e9d01b5a73e3aa59b3d7d8680. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITK262203886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62ce2f1bc869a2d605c4796042e3a40307576bd99ff4e04912e44aaf3d0b3f2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK262203887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec59ddd76415167f4fd16541116199dccc16daa5413b889342db8e3ac704bde. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ITK262203888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b62fcbe5f31fc6a7bca4edc6ba629891d16d0b5b35be75a82f4c9e2dc3c7e1. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/ITK262203889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3d266b12d252293d3a6f7af2dd4871937b21e0923c4eed9d22558db87627d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ITK262203892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2ed34b8decafed9c062f41c37d9c819e0f0eeeb7cdf817c41178488c565fb4. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/ITK262203894.
Peaceful Piano: Beautiful Soft Piano Soundscapes with Ocean Sounds
Tranquility At Night - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70130ecb72c1910f916f31a2800f67397182e8f4887981832bca605b17574cb1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITK262203927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae31766fb427ba9c2b944dd3d5e7fef5c4d83788eed0df9c78b85687544fa160. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITK262203928.
Piano Song for Tranquility - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c86e4bd69c326bb1ac1acb6859755d1d971812bf1319cb69752446c00dbb45. 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/ITK262203929.
Transparent Nature - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e13e87c475eca2285aa6df0e3a31320e88e546fd4f10f27022d8dbd150ffdfa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITK262203930.
Goodnight To The World - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa190221b16b6293bffe819e119c1d1dbd76a23725610c2775f4a7c86986e7f11. 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/ITK262203931.
Deep Sleep Piano: Piano Soundscapes with Flowing Water & Ocean Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07efc53fda01a65d677635da3674b6bb29afcc3457d3d4d5347f8bb2a74b6bc4. 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/ITK262300252.
Memories of Snow - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f9919951b890ad20a38c2c016f19d33edcdf0a0735de903ef55d24c11cff57. 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/ITK262300255.
Piano Music for Deep Sleep: Calming Music To Help You Sleep Longer, Deeper & Better
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4dfe7b49835f18fd713f8e96fe3b0fd324ab360e893012458f26e3cf8afa1f. 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/ITK262205152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c106019888c47cd19208fcfc516a0991db7ab3c30c201381caa1bd54bfa83b3. 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/ITK262205154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6107dbc99c71f5616266679e6665ca19ea8dbd855db37458a0e6c5f5cf1f47f. 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/ITK262205155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c24477d4f2a1c422d6062f34f9d3e08f0b9730b9bbd49c7502fb280ad5f28b. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ITK262300253.
Poetry in Motion - Nature Sounds Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28582540af072770720e22f50b9a53569f8619bf04b52a91487603e3b961b775. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ITK262300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733d9e4f820a4b4ac2d24682463476503d8bbeedb332c8e78eadaa9de1e3bc34. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITK262205153.