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 0x6294d79744d868befe115c0d8d34fba9ebc3ad58e457324bac756dc31b95f80e. 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/0fe22402-401a-4080-a9d0-35291fbefa40.json and https://artists.proofprofile.net/proofs/artist/0fe22402-401a-4080-a9d0-35291fbefa40.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 0x976f45f7248b7a8b66060d80ffb43d2ee58f887f855cf25c4846dc70d20f8ae9. 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/TWC010401191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b30d4b7b216c49b670fc9bd1ce1e3efaa6e51a7f6b35db84029c85fbb578543. 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/TWC010401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767a524f0ff3e848cccbdc1049f0aaf5bf76db15f9453b9878792b9399ee84a7. 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/TWC010401211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72af1fd18654040e4f7a8beea705b7755d1b8294cf5738166ed2be12f1f5b8a. 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/TWC010401221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cb084f5fc86bce9fd978d0d179f2182ce97106bdcaee6a5db41d6cc666fc6d. 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/TWC010401241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707cd079c1a57c47227cc4f8e0bd3d4b3b7799d85e092aa72316ebc3e30b83b6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWC010401251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f74266f2e910ad04e409007ce2f6a4de375899c2e2046c157c13f4c6c4dc7c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWC010401271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2ad8e0279e762451ac2da1da66a9c735c78582a3147b8be2317a36b5d1a6d4. 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/TWC010401281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b322bec0d82af3efe1edf34ee51e3558d992d8ee2d5c6df085ca230ae0fc54a. 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/TWC010501601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b73f7aadf3a3ab617f2462116dae3debc8839dba7c4fa05ac381f97a722adfe. 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/TWC010501611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3876029cc7182dc7b13b006fc28a23c7a39ed9f9202cc055f4919af3fc72a34. 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/TWC010501621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fc6311ae6f529e4a1631f6278ccc632968a79fb3121f8124d219f1cfb6870f. 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/TWC010501631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c39313b12f992a3033cded19f6f7b33e9cc77d894c7cc88b2b3d78d3a9d363. 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/TWC010501641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e83ea7e842bc3c5b72b71087bf35cc7a23e4b33a5793ab40e058bfcefd308d. 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/TWC010501651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd27f19bc3ba30b02311c892aac5a528af6eed1cb82f7fbcabb70622be83fc8. 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/TWC010501661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4691dee6eddc14fdc1e17608c3f1421bac927f0449409a572f758af3ae5db5e6. 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/TWC010501681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31206117db8954db9f603a0d60a9c8f7345a34da4ea2b7d80403e6b353859a8d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWC010501691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed512ffd2ec58ebf42bad4be560d0593bb87d92e57c7d4aa003826abb40753e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TWC010501701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2feac7c6818ca211bb6d00acb26119a0571348f60f6453ebcee5eb82ed214514. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:02:05Z), 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/TWC010700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0be53b97053823deca8e317e9cc19134218e39eca18ef2ce188932423b8289. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TWC010700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67b9a9d40532c53a8ea62bc8c3dafbaa8ad2bd9a58a3c25b08e003eb7dafe0b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TWC010700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5777fef92ec5b3148fed31874fca2c0aa8b3457180d4a58fb307f239d9633089. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TWC010700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb134dd4630a5faf5b7b0eb8fedaab7c1669b793fc644d411cfea33b7f4c8e6ad. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TWC010700241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24606c3b5678debaa280279edd1c95081334ce596686adf457da000e16d0f93. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/TWC010900811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0be53b97053823deca8e317e9cc19134218e39eca18ef2ce188932423b8289. 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/TWC010700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3876029cc7182dc7b13b006fc28a23c7a39ed9f9202cc055f4919af3fc72a34. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TWC010501621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e83ea7e842bc3c5b72b71087bf35cc7a23e4b33a5793ab40e058bfcefd308d. 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/TWC010501651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67b9a9d40532c53a8ea62bc8c3dafbaa8ad2bd9a58a3c25b08e003eb7dafe0b. 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/TWC010700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae999daa86f04bcdc5ee3d84edf297b26925860288e5e3716d4cb1bc0ac1df4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TWC010301240.
Ambient Music: Calming rhythms for work, study, sleep and yoga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767a524f0ff3e848cccbdc1049f0aaf5bf76db15f9453b9878792b9399ee84a7. 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/TWC010401211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae999daa86f04bcdc5ee3d84edf297b26925860288e5e3716d4cb1bc0ac1df4. 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/TWC010301240.
第四屆 全國大專創作歌謠比賽優勝紀念專輯 年輕的感覺
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafa551868aaa25f685dcdef622e52a06cec047061d2829002d05d3326896c1. 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/TWA511300894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae999daa86f04bcdc5ee3d84edf297b26925860288e5e3716d4cb1bc0ac1df4. 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/TWC010301240.
LOHAS Yoga & Relaxation Stretching Music for Re-energizing or Exercise Warm-up/Cool-down
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b322bec0d82af3efe1edf34ee51e3558d992d8ee2d5c6df085ca230ae0fc54a. 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/TWC010501601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb71efbf8015d93acd895ee80280641f504b63ad31e4f8b181aa29c082c647b. 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/TWC010700261.