The Marapu religion (also known as Marafu in Sumba) is a form of ancestral religion that is practiced mainly in the island of Sumba in Indonesia,Trisha Sertori, 'Sumba on show in Bali', The Jakarta Po
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 0x8ef020a0f224635e33fa0907c4136ae0a913ab2fcc10048381fc91492b2232fd. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ca43d63-f838-4f7e-802b-dd38d21f71bd.json and https://artists.proofprofile.net/proofs/artist/1ca43d63-f838-4f7e-802b-dd38d21f71bd.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 0x87e3217cb793fa4773ab2e41c59b63bef3ffcd1fd29a02ca6f9b8d83206e50a9. 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/ES71G2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc397d6c7c5af7c5d1fcbfc0c9ba4a6441a216660e181a716c7c6e2c207b97b7c. 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/ES71G2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7345c5fb0f562e66aed516eb7e9702d2ccf85c3cef013245f25673a7dd64fb45. 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/ES71G2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2af9f37eb1c09db5ea63fd5355336b1b2ebe8939f1cc2d4465707e5474f75. 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/ES71G2303361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb094ed63db14eab3d5b20ea8d0eb8cb9ce214ba4a5ab59ecb4f50d4ace076589. 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/ES71G2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d1c7e4e9472f331596247fdc1b6509d3e8e278aae372f46e1b3326fc1a27f9. 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/ES71G2303359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee59c500c00db3c049455576ec6f1065f7b901640c887f099d9aaf0b9122c9e. 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/ES71G2303358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9d8fafa8e0265898fd3871a13756f3e609b8d490eba847a63e67a861affa12. 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/ES71G2303360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc778bb9a5e560489223cfd4fd620fb6ef13c268ab3ad08b064ee2f1aa452b19b. 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/ES71G2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb291780cf09f38e1b2a59d57838e97ce9752286d2dd62272365bf9000682c3. 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/ES71G2303357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96deb9bf2bf3b5f9548e7f25e31692ce2589d397cbb3ae469d5aad6cb3500124. 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/ES71G2303362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90b711c8e3c2d2ebfe8ce1c018196ee5420526f79a356639b0512e4e9a2a96b. 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/ES71G2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d1c7e4e9472f331596247fdc1b6509d3e8e278aae372f46e1b3326fc1a27f9. 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/ES71G2303359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee59c500c00db3c049455576ec6f1065f7b901640c887f099d9aaf0b9122c9e. 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/ES71G2303358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb291780cf09f38e1b2a59d57838e97ce9752286d2dd62272365bf9000682c3. 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/ES71G2303357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce2af9f37eb1c09db5ea63fd5355336b1b2ebe8939f1cc2d4465707e5474f75. 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/ES71G2303361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96deb9bf2bf3b5f9548e7f25e31692ce2589d397cbb3ae469d5aad6cb3500124. 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/ES71G2303362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21cc53ab722fbb38fc00075a220ad5fb10b86f428a38a1b95189391c3e3e327. 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/FRPI31800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb7276c633d9d73c4d1b306a2c7714d74969d71f95b55a0e8883894998fabd. 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/FRPI31800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ecd98352700dc5518e02f493e7042615f5ffb050603affd2717b82d3cb4020. 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/FRPI31800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ee915bc33db8a1e60b06aa71a0735c0331c23517929ae6d177bfcd8065e6f. 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/FRPI31800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba53c9d5079f52cea9b2b40ef230f93b9d1c251a414ada765b8541e610938e3. 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/FRPI31800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc09efb85859e9ccfb7f4201c570b5d24b50d5089b81836c014d0f957d54c7. 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/FRPI31800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df135a80760b32a773164a17a212f56f0d000f77b1b488bea785d26dbac111b. 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/PI3201700136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7dd679a4b53050f39d04f6bba1a7ec21cef45f557c352d3f85170895265f8f. 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/PI3201700139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f9946f68095ddfd87deac699ba53525ee313d636a62976cf357d2dcc361e8. 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/PI3201700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b096467248d133b2ea8b3fb1b9a6d2c111b6a07af5f56f2ae3db926eabe6cec. 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/PI3201700132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3dd00f04b628e692821fd43c768b5d853c0773f106722d26032ce1988701a1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRPI31700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73b25f562e0f7651a0f3f15caa6b9671579e0358f86cdb7db4442a2843e5bc8. 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/FRPI31700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6cbd70d24ca3e22505f1ad251b9389127745aa1eccffdbe354ca918cd77014. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FRPI31700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ba6fb6bb12b9c81b86220af87edc17db852b4a3cb2011e78905f9666f42925. 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/NL8RL2459460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a28faeee7f0a21fc6607759bf337039c04f5059787dc7e96aa5cb187f7cca4b. 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/FRPI32200225.