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 0x611b787ff705b20857892508c41d5e454b77aca817e62663c75a92aa5c5a3b9f. 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/ca4b8a89-6f4e-4351-ab15-40eb8317cb26.json and https://artists.proofprofile.net/proofs/artist/ca4b8a89-6f4e-4351-ab15-40eb8317cb26.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 0x5454043670a0a6cbcde4ecbea491a491943fa5ef0567a6850ee8f6195c861017. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZNWS2285144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93bd88df7926f153f22dfd783f501b217ebbbd4e8f50511397a3d15d3323e6d. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZNWU2285786.
Bedtime Stories Vol.1: Music Box Lullabies For Babies (Sleep, Nap Time, Relaxation, Meditation, Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb2a92fba2dbba16a80f6608f34574048f32a10eb4984808c1b81d99cfa0d23. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZTAT2218704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6180986b2766df4887f899ad91ac4c6712f243acf423f9936607714522949e5e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZTAT2218705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd81ceca41156429e409aa9eb073231e80b8087c1ad8965e119a84958f8210d1. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:53:58Z), 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/QZTAT2218706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a13053fe3a9a6298cd1bd0c84571b37b60a2948a9802b69984289992fb8ac0c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:27:16Z), 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/QZTAT2218707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4944b1f99319d83b9bc8857ccf80d0a41c0d821d4308512b00b9b4828734cdb7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTAT2218710.
Bedtime Stories Vol.2: Music Box Lullabies For Babies (Infants, Toddlers, Children, Sleep, Nap, Relaxation, Meditation, Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37d0bc2525c804cc2ce0ff1221746a12024bd920beb37ac20fe3386356f6116. 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/QZTBB2240833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06875b4f30cb6b0654c5bb211b1ade03f70a5e37b184cc93d1b882447174845b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T04:58:56Z), 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/QZTBB2240836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc182f77ce8724c11a0abcf9169a7cdc18c4ac851740a1972744cf18cc23308d1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:39Z), 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/QZTBB2240837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7012e6ea8c89b22c65eb54a84b2cafc58ddbe5ec697bd285d4295cae2e0d4b2. 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/QZTBB2240838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e2226cd96e2982b0c34bde3b899b8ab2f8f24076d8f264f8bceb63b04b59a0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBB2240839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7bce47caab0bb0610bf71eda4d581f8153ad26e1124dea81fc80fd55f531c4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTBB2240840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a75a08c8c6825721c427d2795710cf0bc3e0286d52f81bc971ce262894aaef4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:23:48Z), 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/QZTBB2240844.
Bedtime Stories Vol.3: Musicbox Lullabies For Babies (Infants, Toddlers, Children, Kids, Sleep, Nap, Relaxation, Meditation, Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cb7c4a2f4597b2e8f27a20da8e9d7e18a5e5fd495252468d20c6178cd3b893. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZK6F2328209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91227803ce763c8e6a17e0dcf18d9bed8a54639c618497d542c6c971b92b763d. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZK6F2328210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c6dec049c31cbb67d773a4ceeacf2c736eb7afc86d1bfde50c9cf797ce87dc. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZK6F2328211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7461887c20660de065abe821c63b0ebe80cac695051515d72d5f3cceae5bef. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6F2328212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaeacb03c96fe041288cec9e99ea64e3114abb8b31c59d64d3fd649613da0fc. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZK6F2328214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e1128822b84143a46243d9ff190289eddd01899d262c53027752f056659da5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZK6F2328215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce54b6b1f9377336052349949549b6899ddad387a959521c886f9ccfaf1dfee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6F2328216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afb4b992bc8798538adc6a13e224dc90179bd1ba6a6a1ae63b83caac1bf2204. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6F2328217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e05710e3eb8fc65f2b9d33b29fc87ece5e6964dd416ca89077574a69c7a8070. 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/QZK6F2328218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04b80d8fd0791f2bf7004b33283cf323c010ece638c8fc58f9d39558ee5ebc0. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZK6F2328219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b78d9ed370a8ef4bc1b2c934f7be5fbe71959e1418613997139eea40f4275e. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZK6F2328220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8424bd5a2e7f228f50d27ad0a758cc06a15431197477b9b11724076b98fc25. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZK6F2328221.
Bedtime Stories Vol.4: Musicbox Lullabies For Babies (Infants, Toddlers, Children, Kids, Sleep, Nap, Relaxation, Meditation, Lullaby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc7084091d61c9f2bd686b07667eb5f18ef00b21a20ad54511e5ceab0b77699. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZK6Q2499723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45737a967950de41f79e607d904e1469ccb48ad9c03bfa69821cdf742a403403. 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/QZK6Q2499725.