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 0x7654a322727cc04c2f7c76f756e6dae97bc612af60ea159254a0986d6db17c48. 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/d9b1dd20-6545-4ccd-acd5-5d249eb94ae5.json and https://artists.proofprofile.net/proofs/artist/d9b1dd20-6545-4ccd-acd5-5d249eb94ae5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambient Fire and Chill: Soothing Warm Vibes
Loud Background Rain Noise for Sleeping, Resting, Relaxing, Studying
Loud Background Rain Noise for Sleeping, Resting, Relaxing, Studying 1
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 0xa7a9bcb0d2ae79e94240bb4712067036a2f35ac4d2f3487e14b3f12105af4524. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/TLVEM2470706.
Loud Background Rain Noise for Sleeping, Resting, Relaxing, Studying 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115eed6302ccfb272155ee394fa5a8f2dc6413ed33400e408a06b84a8af07153. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TLVEM2470707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ddc64bdd1fbd8416c14ec58a1ed0f70ce9984268dc78b445f7b6d9ea9a5838. 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/QZWDE2459987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4398c74d7663531f517749f17a6d4c0c9ddc9d5d0c12261e4da7b7fc6547f0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZWDE2460013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb4b4ae6400b2d8d0b9dfe3aa6d26c52e907b3bfc38285f88516ba4cfa142ec. 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/QZWDE2460038.
Productive Tones: Music for Concentration
Pets' Peaceful Melodies: Music for Quiet
Soothing Nighttime Binaural Birds for Sleep
Binaural Symphony: Birds Over Nature’s Creek - 80 88 Hz
Hidden Wilderness: A Melody of Nature's Secrets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc361afb5a8232cd53e5d725f901d3f8cedbda1019071972ba8f2e8bb605298f3. 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/SE5W32201495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe876cf09655d0e871639bb9e95a5d8d971fbe9b32705a84ba570cdb877cf0527. 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/SE5W32201496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c301d9d91ecf10b3a409aee3214ed2fde40c51dcca073e866cb8a195dce7ab. 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/SE5W32201497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa532e5c1aa483bc7bc301a0d4f1b2c19ce5da295896c7f10dad07e8ca484ff96. 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/SE5W32201498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cddef1b3ca6fc939755119463f66f113df6b9e93269cc37d2d6aaa320b3b5d. 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/SE5W32103755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f56f011017082d4f127211440372f8f25f5a0c513f92a9a42a8bb710d470d3. 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/SE5W32103756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032a6c510428cb4bddb00e9ab62ac28e8eedb9969422509a8e7117f02dd5337a. 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/SE5W32103757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a05c64645d92e3a8f0e9991ac9239b780928a0acc4990e65ac8bcf379205a3c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32102718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d37de5978526d7707276bb375b50ceb939d059a9a47f1733dbee9d12fb5e7c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32102719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4512fa563fe1aeefc86779b37f54af31fbf354cb62413edf823d2d515a5a34d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32102720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddc08d3ea5c31853838ed0c1f21d526b2ee01a77de84e4c38e139e11f5f5391. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32102721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077e6b2e0480d3cd63cc41115fdf549ba807962555415d66f5eaec607f1d2033. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5W32101193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e6f8eb53fff17526a9644ec91b5dfd182d655bedbcbe165b83812398129679. 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/SE5W32101194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9582bcfd3e57990e7acc5708d4a2ad79028a464f76065c3b8114dca34ed18b3. 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/SE5W32101195.