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 0xf997c75297c86fe51dabc457400ba6256dd65bfa11eb69b23adcf411b68b37f4. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f44ab48-f960-4460-8e11-c236c151570c.json and https://artists.proofprofile.net/proofs/artist/0f44ab48-f960-4460-8e11-c236c151570c.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 0x72867722c277992a1b1dcb4035e45cf1b43d17f9fc05fe18f381a5c377089c77. 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/DEUE12415580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37d6c2058b854d0f80d2c3674f8e517a26331c5a51b9aeaffeab4c755350d06. 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/DEUE12415581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705bc19c769d830a3dab2cda4d746edfb6f3a625471482c095cc39d542aa90ee. 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/DEUE12415583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6dbf45d39908e38be0a7a35ea854edc41e3585e4816934afd0811c2d37f7b1. 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/DEUE12415579.
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 0x34b2eda92ed344d83c228516c0b34b6cdf3bbb2856ab4d920c2b7e09b0b62255. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12415582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba68957f917e31d2a036d0e7e61c18883928a3f5be23224b0e3eb42eccc82ad. 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/DEUE12415584.
White Noise: Sounds of the Shipping Yard
Loopable Brown Noises Exhaustion Cure for All Age
Looped Fan Sleep Noise - Brown Noises for Calm Relax Also Cure Exhaustion Loopable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0172389a48b1318750a9c7d9f42dfb737d1bd9bcc0d43716ce46885c42fd759f. 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/PLS101910283.
Brown Noise for Sleeping - Loopable, No Fade
Appliances and Nature Sounds for White Noise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bf1a82d50baf4fcac41dade0cf7e1e2e5542824ad73e586207a47dda19e2b3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUE22342461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42f1be567ea4e35d8ea54a83e711416da90113fb4d3fd50445b549b942fbea1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEUE22342463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5902ca393dff19f53805133ee6c638478cd76345cadccb81857dd77435304355. 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/DEUE22342465.
Deep Space Brown Noise - Loopable, No Fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb714f4c2728c1b0a95149c56b994e7af3164deae8bc8ac02c6ca841f79b67c29. 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/DEUE22342469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf294886af0c613ea6d18a47fb3df1193596eb0a9d14390beaf176b5c76000c. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEUE22342460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d23ac9c6eea6791e264da55008f7fa36bb18e0a40468a7809711da1e0dc22d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEUE22342466.
First Class Brown Noise - Loopable, No Fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a8ac72c674c3ccde1f92da2d653ca5e63a4ad04913dd28d5b3e395d7dd5a98. 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/DEUE22342470.
Air Conditioner Sound – Noise Pack for Calm
Looped Noise – Calming Noise Compilation (Loopable)
Zen Moods – Zen Brown Noises Exhaustion Dure and Meditation Background Loopable
White Noise for Absolute Sleep – Loopable Brown Noises
White Noise – Miracle Loopable Noises for Relaxing Sleep
Deep Sleep System – Exhaustion Cure for All Age Noise (Loopable)
White Noise Babies – Recovering Noise Pack for Restless