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 0x9551e40a24cd547d0024d2b2c04d42d5e0338c14f33ae4ce205aeefeec121f6a. 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/f0295388-bf63-4651-be76-731730e7debf.json and https://artists.proofprofile.net/proofs/artist/f0295388-bf63-4651-be76-731730e7debf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
寵物放鬆音樂: 讓狗狗放鬆, 無壓力, 毛孩安睡音樂, 自然之聲
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 0xdc09f08fb88aeddc4ecb2ed1b07684e521b91f28878a12bdaeaf223fca29b44b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITO102046993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6074e282df05fc815a42ad6f1e1daa42a2ac21e284064b73cbccef950d409fc0. 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/ITO102046994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf537045839b3d5eaaa1f7a7f46bf3a253cba0fd2825c3bdcb8f2b5af77bc41c2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITO102046995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3598b8261623b6d07f436f733c75441366a519592644b1368d31c85fa11df195. 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/ITO102046996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540b69dc71d3689c239dd532d653918a57353888e0d0910ce053306ab077ae96. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/ITO102046997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e2de93d3e6c2a9b13ffe8f45cee57c5819e215ba0b458a1880a4c56f6e03b9. 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/ITO102046998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08d3e35f5fe44d36385fb5915c04cfcca5f0227af87c0deceac7f3907c85af9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ITO102046999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d44419f4d89b3efcf65394acce5496204d46b45f17a2e25502f74b038700fc. 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/ITO102047000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ce4159a585acbeb15bf68b2128e2fda32e47a8eb6331003739b5b6cd8ebff7. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ITO102047001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d6aedfb66afbd7d1d2804a0b91e202f281fd005d1718d6a0cf205e4ae5482. 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/ITO102047002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2985c0c79c2b6582a8095b0537d64d0e6942e6f89b3bd92c017a9f55fa387d23. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ITO102047003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eadb70c5ec7025cbbf00863ba6bc070e4bf6f8e2be22c7c918e9db766db1979. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ITO102047004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19ba9e8b9abc6f74cfb12d03f0d47cdf78cb054c07b890ed4fdaab6aea027bb. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ITO102047005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584471e6c3ff434d7d38bec9f482220ccefa938069295f74b901c78b01c68e1f. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/ITO102047006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a81d01d6166192b2ea7626e80f632082d21409669a1a6ed54614b2661e918e. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ITO102047007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9795aede8268142885bc7464a3c0b62c9d9bc80aa1573f6b1ec3dfdd07f548. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ITO102047008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496205cc8f2174b9054fb1c98dd8ec6f5af654c210eff1452c1207ecae3b9088. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ITO102047009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce1e9d354188cefe476de42d877afc78059ff36bf640d93ed9da9401cc892d2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ITO102047010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4ce65e7c2a87da25a9d87be287a2f4c757edfce04ae1f790cddee8fda816f2. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ITO102047011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6f7a37e60154080e92b8f20a1c51bebd4ecee3f9429eaad64147332969da3b. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ITO102047012.
動物睡眠音樂: 寵物音樂放鬆心情, 減輕壓力音樂, 貓咪催眠曲
狗狗音樂: 激活狗狗大腦的音樂，令狗狗很聰明的音樂，深度放鬆的寵物音樂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18e7f4b36f49874c8648881762beb23a36825d0203142470d87affa9325ed39. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITO102209769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c12ffa08f87357f7274a416943ced1bce088a2e6c6b75e8521604a1fe71018c. 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/ITO102209770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddda1320b8936eb34ce0a60847a53017e6debfa605cfa596af43042d9ecdfdc. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ITO102209771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c9a6d93e32e27af7477c1e7fd2a96c03449802c76fc7931eb6931aaa7b493f. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/ITO102209772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764972fb136c2d1e9e1bdd2be6ea1d276897aeb4bccda43ccf05fbe1b3e24b3. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITO102209773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a4d89b5771b3809acae2bba3fd21d5e4fb1900468c18ae4f6503bb8b32b20. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ITO102209774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0e282fc6309271f873ab5b50c282510d62e339108db10ea92da6911ebe2bee. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ITO102209775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f64776ad2ae1d5db7b0942d1238748ae65182cf9568e40dac0a68b76293138. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/ITO102209776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa363ca96b25b16df64be2d2b0dbce593f1831a65d7d362f5c31a03a85615f6ed. 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/ITO102209777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd1a4fa5b91d25b7a6b30a800b3d14efce961292f2c739ac7e3169e920069d8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITO102209778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb00d99ab744a8c401c8c768f339b10bfa2763abc974b75089821c42d0a7cbf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ITO102209779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9f3dd62222c7766f24c955d60368e0a6e7115426d72256c12fa342fbf541c1. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ITO102209780.
狗狗的晚安曲: 小狗必聽的催眠曲， 寵物貓和狗放鬆， 讓貓貓和狗狗安靜下來的催眠音樂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78e784d035b0b591a988bea97e666e4dc54ad0599a2aae2e5211ec0d32c8d6b. 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/ITO102220098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6129fe924fd546b969a846b459ecbc4e0e3c1c9031529c1e2ce066ffee740b. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ITO102220107.
放鬆寵物的阿爾法腦波 - 促進小寵物大腦發育、提升貓和狗睡眠品質的純背景音樂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff60facad5b95a07699e065219c164862da587a587247fb4c2067d7680c6f7e8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITLU52267198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d8c4ac8151a32de21fb37ad0463bc61b30f733adbe14dc701d69b461251776. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ITLU52267200.
小狗的舒服音樂：讓狗狗立即睡覺的深度放鬆背景音樂